Product Description

The SOUL Street Package is a complete catted performance exhaust solution for 2017–2019 Porsche 991.2 Carrera Base and Carrera S models without Porsche Sport Exhaust / PSE, combining SOUL's Sport Catalytic Converters with the Performance Exhaust System with Anti-Drone Tubes.

The package addresses both major restrictions downstream of the turbochargers. High-flow Sport Catalytic Converters replace the restrictive factory catalyst assemblies to increase exhaust flow, throttle response, turbocharger sound, and performance potential. Farther downstream, SOUL's Performance Exhaust dramatically increases the character of Porsche's turbocharged 3.0L flat-six while using carefully tuned Helmholtz anti-drone tubes to control the troublesome 1,800–2,200 RPM resonance common to modified non-PSE 991.2 Carreras.

The result is a more aggressive yet street-friendly exhaust system that retains catalytic converters, retains the factory turbocharger heat shields, and does not require conversion to Porsche's factory PSE system.

FITMENT:

• Fits 2017–2019 Porsche 991.2 911 Carrera Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Cabriolet without PSE

• Fits applicable 2017–2019 Porsche 991.2 911 Targa 4 without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Cabriolet without PSE

• Fits applicable 2017–2019 Porsche 991.2 911 Targa 4S without PSE

• Designed specifically for vehicles without factory Porsche Sport Exhaust / PSE

• Compatible with manual and PDK transmissions where applicable

• Carrera Base models may reuse the factory Base exhaust tips

• Carrera S / 4S models cannot reuse the original S-model exhaust tips

• Carrera S / 4S models must use compatible SOUL tips or compatible OEM Base dual tips

PACKAGE INCLUDES:

• SOUL Sport Catalytic Converters

• SOUL Performance Exhaust System with Anti-Drone Tubes

• High-flow catalytic converters

• Helmholtz anti-drone tubes

• Required installation hardware

• Selected SOUL exhaust tips where applicable

DETAILS:

• Complete catted exhaust package for non-PSE 991.2 Carrera models

• Combines SOUL Sport Catalytic Converters and Performance Exhaust System

• Retains a catted exhaust configuration

• Premium high-flow catalytic converters

• Increased post-turbo exhaust flow

• Increased turbocharger sound

• Increased flat-six exhaust tone and volume

• Improved throttle response

• Performance-oriented rear exhaust architecture

• Specifically engineered around the non-PSE Carrera platform

• Helmholtz anti-drone tubes target approximately 1,800–2,200 RPM

• Anti-drone tubes reduce undesirable cabin resonance without conventional mufflers directly restricting the exhaust flow

• Retains the factory Porsche turbocharger heat shields

• Developed for catalyst-related CEL-free operation under normal conditions

• Constructed from mandrel-bent .065-inch-wall T304L stainless steel

• Back-purged TIG welded

• Fixture-tested before shipment

• Designed and manufactured in-house by SOUL Performance Products

• Backed by SOUL's Lifetime Warranty for street and track use

COMPLETE STREET-ORIENTED EXHAUST PACKAGE

The Street Package combines two of SOUL's primary upgrades for the non-PSE 991.2 Carrera:

SOUL Sport Catalytic Converters

and

SOUL Performance Exhaust with Anti-Drone Tubes

Rather than addressing only the rear muffler or only the catalyst section, the package reduces restriction and changes sound throughout the post-turbo exhaust system.

The result provides:

• Greater exhaust-flow capacity

• Increased turbo sound

• Greater flat-six character

• Improved throttle response

• Increased exhaust volume

• Better control of low-RPM cabin resonance

• Retained catalytic converters

HIGH-FLOW SPORT CATALYTIC CONVERTERS

The factory catalytic converters sit immediately downstream of the turbochargers and represent a significant restriction in the stock exhaust system.

SOUL replaces them with premium high-flow catalyst assemblies designed to improve flow without converting the vehicle to a completely catless configuration.

Benefits include:

• Reduced post-turbo restriction

• Increased turbocharger sound

• Improved throttle response

• Increased performance potential

• Stronger exhaust character

• Retained catalytic converters

• Reduced diagnostic concerns compared with catless bypass pipes

RETAINS CATALYTIC CONVERTERS

Unlike SOUL's Cat Bypass Pipe configuration, the Street Package remains catted.

This makes it the more conservative complete exhaust option for customers who want substantially improved sound and flow without completely removing the catalyst assemblies.

The Street Package therefore sits between:

Factory Exhaust

and

Fully Catless Performance Configurations

in terms of aggression.

INCREASED TURBOCHARGER SOUND

Replacing the restrictive factory catalysts allows considerably more turbocharger sound to pass through the exhaust.

Expect more:

• Turbo spool

• Turbo whistle

• Turbine sound

• Throttle-related acoustic feedback

• Mechanical character under acceleration

The freer-flowing rear exhaust then allows more of that sound to reach the driver instead of muting it farther downstream.

PERFORMANCE EXHAUST SYSTEM

The rear half of the package replaces the extremely subdued factory non-PSE exhaust.

SOUL developed the system specifically to add the flat-six character many owners feel is missing from the factory turbocharged Carrera.

Expect:

• Louder cold starts

• Greater idle presence

• Stronger acceleration sound

• More turbocharger sound

• Increased high-RPM exhaust character

• More pronounced shifts

• More audible deceleration behavior

• A much more engaging overall driving experience

ENGINEERED FOR THE NON-PSE 991.2

The standard 991.2 Carrera exhaust differs substantially from Porsche's optional PSE system.

SOUL therefore developed this package specifically around the non-PSE exhaust architecture rather than adapting the PSE exhaust to fit.

No factory PSE conversion is required.

The system does not require the installation of Porsche's:

• PSE rear muffler

• PSE exhaust valves

• PSE valve-control hardware

• PSE button

• Factory PSE coding

This is a dedicated aftermarket solution for cars originally delivered with the standard exhaust system.

THE 1,800–2,200 RPM RESONANCE RANGE

SOUL identified approximately:

1,800–2,200 RPM

as a problematic cabin-resonance range on the non-PSE 991.2 Carrera when a freer-flowing aftermarket exhaust is installed.

This matters because the engine regularly operates in this range during:

• Highway cruising

• Normal street driving

• PDK operation in taller gears

• Light-throttle acceleration

An exhaust can sound excellent under full throttle while becoming tiring during normal cruising if this resonance is not addressed.

HELMHOLTZ ANTI-DRONE TUBES

SOUL tested several acoustic strategies during development, including conventional resonators, straight pipes, X-pipe arrangements, and Helmholtz resonators.

SOUL found that conventional resonators reduced overall exhaust tone and volume without sufficiently addressing the specific low-frequency resonance it wanted to control.

The final Performance Exhaust therefore uses Helmholtz anti-drone tubes.

These chambers are tuned side branches of the exhaust system rather than conventional mufflers placed directly in the main exhaust stream.

They are designed to reduce specific undesirable frequencies while preserving the aggressive exterior exhaust character.

STREET-FRIENDLY DRIVABILITY

The objective of the Street Package is not simply maximum exhaust volume.

SOUL designed the package to balance:

• Aggressive exterior sound

• Increased turbocharger character

• Improved exhaust flow

• Stronger engine presence

with:

• Reduced cruising drone

• Comfortable highway operation

• Everyday street usability

This makes the Street Package the more complete street-focused solution compared with combining catless pipes and a non-resonated rear exhaust.

WITH FACTORY CATALYSTS VS. STREET PACKAGE

A Performance Exhaust installed behind the original Porsche catalytic converters significantly improves sound, but the factory catalysts continue restricting post-turbo exhaust flow and attenuating turbocharger noise.

The Street Package adds SOUL's Sport Catalytic Converters to address that upstream restriction.

Compared with the Performance Exhaust alone, expect:

• Greater turbocharger sound

• Increased exhaust flow

• Improved throttle response

• More overall exhaust presence

• Greater performance potential

STREET PACKAGE VS. CAT BYPASS + PERFORMANCE EXHAUST

SOUL Street Package

• Starts at $5,870

• High-flow catalytic converters

• Performance Exhaust with Anti-Drone Tubes

• Increased turbo sound

• Increased exhaust volume

• Helmholtz drone control

• Developed for catalyst-related CEL-free operation

• More street-oriented configuration

Cat Bypass Pipes + Performance Exhaust

• Completely catless

• Lower catalyst-section restriction

• Greater turbocharger sound

• Greater exhaust volume

• Possible catalyst-related CEL

• Greater emissions considerations

• More aggressive / competition-oriented configuration

For a street-driven Carrera, the Street Package provides the more conservative complete exhaust configuration.

CARRERA BASE TIP COMPATIBILITY

Carrera Base vehicles have the simplest ordering configuration.

A Base model may:

Reuse the original factory Base tips

or select SOUL:

• Carbon Fiber

• Polished Chrome

• Black Chrome

tips.

The Reuse OEM Tips configuration provides the lowest package price.

CARRERA S / 4S TIP COMPATIBILITY

Carrera S and Carrera 4S models require additional attention when ordering.

The original factory S-model exhaust tips do not fit the SOUL Performance Exhaust.

SOUL specifies that an S / 4S must use either:

• Compatible SOUL exhaust tips

or

• Compatible OEM Base dual exhaust tips

For normal DasMotoring ordering, the cleanest approach is to select one of the three SOUL tip options.

CARBON FIBER TIPS

The Carbon Fiber tips provide the most motorsport-inspired appearance of the standard SOUL selections.

Available for:

• Carrera Base

• Carrera S / 4S

Package Price: $6,470.00

POLISHED CHROME TIPS

The Polished Chrome option provides a traditional bright metallic appearance.

Available for:

• Carrera Base

• Carrera S / 4S

Package Price: $6,470.00

BLACK CHROME TIPS

The Black Chrome configuration provides a darker, more understated rear appearance.

Available for:

• Carrera Base

• Carrera S / 4S

Package Price: $6,710.00

REUSE OEM TIPS

The lowest-cost configuration retains the original Carrera Base dual exhaust tips.

Package Price: $5,870.00

This configuration is directly appropriate for Base vehicles.

Carrera S / 4S owners should not attempt to reuse the factory S-model tips. An S-model customer wanting an OEM-style configuration would need compatible Base dual tips.

CONSTRUCTION

The Street Package components are assembled from:

Mandrel-bent .065-inch-wall T304L stainless steel

This construction provides:

• High-temperature durability

• Corrosion resistance

• Structural strength

• Long-term reliability

SOUL uses back-purged TIG welding to protect the interior of the stainless tubing and promote proper weld penetration.

RETAINS FACTORY TURBO HEAT SHIELDS

The Sport Catalytic Converters retain Porsche's original turbocharger heat shields.

This preserves the factory thermal-management strategy around:

• Turbochargers

• Wiring

• Hoses

• Engine-bay components

• Nearby heat-sensitive hardware

FIXTURE-TESTED FITMENT

Each SOUL exhaust component is tested in a dedicated fixture before shipment.

This helps verify:

• Proper flange alignment

• Correct exhaust geometry

• Consistent downstream positioning

• Repeatable installation fitment

The finished components undergo SOUL's in-house quality-control process before being packaged.

BOLT-ON INSTALLATION

The Street Package is designed as a bolt-on combination of SOUL's Sport Catalytic Converters and Performance Exhaust.

No conversion to factory PSE is required.

The package does not require permanent chassis modification as part of normal installation.

CHECK ENGINE LIGHT

SOUL specifically develops its Sport Catalytic Converters around providing increased performance and sound without catalyst-related check engine lights.

For DasMotoring purposes, this should be understood as the manufacturer's intended operating behavior rather than an unconditional guarantee for every vehicle.

Diagnostic behavior can still be influenced by:

• ECU software

• Oxygen-sensor condition

• Vehicle condition

• Additional modifications

• Catalyst condition

ECU TUNING

SOUL does not specify ECU tuning as a requirement for installation of the Street Package.

The system is intended to function as a bolt-on hardware upgrade.

Additional tuning may provide further performance benefits by taking advantage of the increased exhaust-flow capacity, but it is not required simply to install the package.

PERFORMANCE

SOUL describes the Sport Catalytic Converters as providing significant increases in power and the complete Street Package as increasing performance, sound, turbocharger presence, and throttle response.

However, the current manufacturer Street Package page does not publish a controlled package-level horsepower or torque result.

DasMotoring therefore does not advertise a specific numerical power increase for this package.

WEIGHT

SOUL publishes a weight comparison for the standalone Performance Exhaust with Anti-Drone Tubes, but does not currently provide verified complete Street Package weights for the Sport Catalytic Converters and exhaust together.

DasMotoring therefore does not advertise a total numerical weight-savings figure for this package.

EMISSIONS NOTE

The Street Package retains catalytic converters but replaces Porsche's original catalyst assemblies with aftermarket high-flow components.

Customers are responsible for determining whether their vehicle and complete exhaust configuration comply with applicable federal, state, and local regulations.

Product Description

The SOUL Sport Catalytic Converters are a direct bolt-on performance upgrade for 2017–2019 Porsche 991.2 Carrera Base and Carrera S models without Porsche Sport Exhaust / PSE, replacing the restrictive factory catalytic converters with premium high-flow catalysts designed to increase exhaust flow, throttle response, turbocharger sound, and overall engine character.

Located immediately downstream of the turbochargers, the factory catalytic converters represent a significant restriction in the 991.2 Carrera exhaust system. SOUL's higher-flow catalyst assemblies reduce that restriction while maintaining a catted exhaust configuration, providing a more street-oriented alternative to completely catless bypass pipes.

SOUL specifically developed these Sport Catalytic Converters to provide additional performance and sound without catalyst-related check engine lights under normal operating conditions, while retaining Porsche's original turbocharger heat shields and factory-style fitment.

FITMENT:

• Fits 2017–2019 Porsche 991.2 911 Carrera Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Cabriolet without PSE

• Fits applicable 2017–2019 Porsche 991.2 911 Targa 4 without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Cabriolet without PSE

• Fits applicable 2017–2019 Porsche 991.2 911 Targa 4S without PSE

• Designed specifically for vehicles without Porsche Sport Exhaust / PSE

• Compatible with manual and PDK transmissions where applicable

• Compatible with the factory rear exhaust

• Compatible with SOUL Performance Exhaust Systems for non-PSE vehicles

• Compatible with SOUL Valved Exhaust Package architecture where applicable

• Compatible with SOUL Sport Headers

DETAILS:

• Pair of high-flow Sport Catalytic Converters

• Designed specifically for non-PSE 991.2 Carrera applications

• Replaces the restrictive factory catalyst assemblies

• Retains a catted exhaust configuration

• Premium high-flow catalyst elements

• Designed to increase exhaust flow

• Designed to improve throttle response

• Increases audible turbocharger sound

• Increases overall exhaust character

• Developed to operate without catalyst-related check engine lights under normal conditions

• Retains the original Porsche turbocharger heat shields

• Constructed from mandrel-bent .065-inch-wall T304L stainless steel

• Back-purged TIG welded

• Fixture-tested prior to shipment

• Direct bolt-on installation

• No PSE hardware required

• No tip variants

• No transmission variants

• No catalyst variants

• Designed and manufactured in-house by SOUL Performance Products

• Backed by SOUL Performance Products' Lifetime Warranty for street and track use

HIGH-FLOW CATALYTIC CONVERTERS

The factory catalytic converters sit directly downstream of the turbochargers and must process the entire exhaust flow leaving the turbine outlets.

While necessary for the original emissions system, the factory assemblies also introduce post-turbo exhaust restriction.

SOUL replaces them with premium high-flow catalytic converters designed to reduce that restriction while retaining catalyst functionality.

Potential benefits include:

• Increased exhaust-flow capacity

• Improved throttle response

• Increased turbocharger sound

• Stronger exhaust character

• Greater performance potential

• Retention of catalytic converters

• Reduced diagnostic concerns compared with completely catless pipes

REDUCED POST-TURBO RESTRICTION

Reducing restriction after the turbochargers is particularly useful on a turbocharged engine.

The turbine must discharge exhaust gases into the downstream exhaust system after extracting energy to drive the compressor.

Reducing this post-turbine restriction can improve the overall efficiency of the exhaust path and provide additional flow capacity as engine output increases.

The SOUL Sport Catalytic Converters address this restriction without completely eliminating the catalysts.

INCREASED THROTTLE RESPONSE

SOUL specifically identifies improved throttle response as one of the benefits of the Sport Catalytic Converters.

Reducing post-turbo restriction allows the engine to respond more freely to changes in throttle demand.

The effect can become increasingly useful when the vehicle is combined with:

• ECU tuning

• SOUL Sport Headers

• SOUL Performance Exhaust

• Higher boost targets

• Other airflow-related modifications

INCREASED TURBOCHARGER SOUND

The freer-flowing catalysts allow more of the turbochargers' acoustic character to pass through the exhaust system.

Expect more:

• Turbo spool

• Turbo whistle

• Turbine sound

• Throttle-related acoustic feedback

• Exhaust texture under load

The change is especially noticeable when paired with a freer-flowing rear exhaust.

EXHAUST SOUND

Compared with the factory catalyst assemblies, the SOUL Sport Catalytic Converters allow more of the 3.0L turbocharged flat-six exhaust character to reach the rear exhaust.

Expect:

• Increased turbocharger presence

• Stronger acceleration sound

• Greater exhaust texture

• More audible engine character under load

• Increased response to throttle input

• Additional exhaust presence without moving to a completely catless configuration

Overall volume will depend heavily on the rear exhaust installed behind the catalysts.

DESIGNED FOR CEL-FREE OPERATION

One of SOUL's primary development goals was to increase exhaust flow without causing the catalyst-efficiency faults commonly associated with completely catless exhaust components.

SOUL specifically markets these Sport Catalytic Converters as providing:

Added performance without a check engine light.

For customer-facing purposes, it is still sensible to describe this as the intended operating behavior rather than an unconditional guarantee for every modified vehicle.

Diagnostic behavior can be influenced by:

• Oxygen-sensor condition

• ECU software

• Vehicle condition

• Additional modifications

• Catalyst condition over time

NO ECU TUNE REQUIRED FOR NORMAL INSTALLATION

SOUL does not specify an ECU calibration as a requirement for installation of these Sport Catalytic Converters.

They are intended to function as a bolt-on hardware upgrade on otherwise-compatible non-PSE vehicles.

An ECU tune may still provide additional performance benefits by taking advantage of the greater available exhaust-flow capacity.

RETAINS FACTORY TURBO HEAT SHIELDS

SOUL specifically designed the Sport Catalytic Converters to retain Porsche's original turbocharger heat shields.

This maintains the factory thermal-protection strategy around:

• Turbochargers

• Wiring

• Hoses

• Engine-bay components

• Adjacent heat-sensitive hardware

This is particularly important because catalytic-converter and turbine-outlet temperatures can become extremely high during sustained high-load operation.

.065-INCH T304L STAINLESS CONSTRUCTION

Each catalyst assembly is fabricated from:

Mandrel-bent .065-inch-wall T304L stainless steel

T304L provides:

• High-temperature resistance

• Corrosion resistance

• Structural durability

• Long-term exhaust-system reliability

• Consistent fabrication characteristics

BACK-PURGED TIG WELDING

SOUL uses back-purged TIG welding during fabrication.

Back purging protects the interior of the stainless tubing from excessive oxidation during welding and promotes:

• Proper weld penetration

• Cleaner internal weld surfaces

• Improved long-term durability

• Consistent exhaust-flow surfaces

FIXTURE-TESTED FITMENT

Each completed set is tested in a dedicated fixture before shipment.

This helps ensure correct:

• Flange orientation

• Pipe alignment

• Turbocharger connection geometry

• Downstream exhaust alignment

SOUL then performs its in-house quality-control inspection before packaging the components for shipment.

DIRECT BOLT-ON INSTALLATION

The Sport Catalytic Converters directly replace the original Porsche catalyst assemblies.

No permanent chassis modification is required.

The system retains the factory turbo heat shields and interfaces with the appropriate factory or SOUL downstream exhaust components.

WITH FACTORY REAR EXHAUST

The Sport Catalytic Converters can be installed while retaining the original non-PSE rear exhaust.

This configuration provides:

• Increased turbocharger sound

• Improved exhaust flow

• Improved throttle response

• Retained factory rear muffler

• Retained factory exterior appearance

• More conservative overall sound than a complete aftermarket exhaust system

This is a good first-stage configuration for an otherwise-stock non-PSE Carrera.

WITH SOUL PERFORMANCE EXHAUST

Pairing the Sport Catalytic Converters with SOUL's Performance Exhaust creates a more comprehensive exhaust upgrade.

The combination provides:

• Reduced catalyst restriction

• Increased turbocharger sound

• Increased rear exhaust volume

• Greater flat-six character

• Improved throttle response

• Optional Helmholtz anti-drone technology

For street-driven vehicles, the Performance Exhaust with Anti-Drone Tubes provides additional acoustic control in the 1,800–2,200 RPM cruising range.

IMPORTANT CARRERA S TIP COMPATIBILITY

These Sport Catalytic Converters are particularly relevant for Carrera S / Carrera 4S owners using SOUL's non-PSE Performance Exhaust.

With the factory catalytic converters, SOUL specifies that S-model cars cannot use their original S-model tips with the Performance Exhaust.

When the Performance Exhaust is combined with SOUL Sport Catalytic Converters, the S model can use compatible SOUL exhaust-tip options.

This should be considered when planning a complete non-PSE Carrera S exhaust system.

WITH SOUL SPORT HEADERS

The Sport Catalytic Converters can also be paired with SOUL Sport Headers.

The components address opposite sides of the turbocharger:

SOUL Sport Headers

Improve exhaust flow into the turbochargers.

SOUL Sport Catalytic Converters

Reduce restriction after the turbochargers.

Together, they provide a more comprehensive exhaust-flow improvement while retaining catalytic converters.

SPORT CATALYTIC CONVERTERS VS. CAT BYPASS PIPES

SOUL Sport Catalytic Converters

• $3,355.00

• Retain catalytic converters

• Premium high-flow catalyst elements

• Increased turbocharger sound

• Improved throttle response

• Developed for CEL-free operation

• More street-oriented configuration

SOUL Cat Bypass Pipes

• $1,975.00

• Completely catless

• 3-inch straight-through piping

• Lower purchase price

• Maximum catalyst-section flow

• Maximum turbocharger sound

• May trigger catalyst-related check engine lights

• Competition-focused configuration

The Sport Catalytic Converters are the more conservative choice for owners who want increased flow and sound while retaining catalytic converters.

PERFORMANCE

SOUL states that the Sport Catalytic Converters provide significant increases in power in addition to improved throttle response and sound.

However, the current manufacturer page does not publish a controlled standalone horsepower or torque figure for POR.9912.SCC.

DasMotoring therefore does not advertise a specific numerical power increase for this product.

WEIGHT

SOUL's current product page does not publish verified factory and SOUL component weights for the non-PSE Sport Catalytic Converters.

DasMotoring therefore does not advertise a numerical weight-savings figure.

EMISSIONS NOTE

The Sport Catalytic Converters retain catalytic converters but replace the original Porsche catalyst assemblies with aftermarket high-flow components.

They are not represented here as original-equipment emissions components.

Customers are responsible for determining whether the product and their complete vehicle configuration comply with applicable federal, state, and local regulations.

Product Description

The SOUL Cat Bypass Pipes are a direct bolt-on performance upgrade for 2017–2019 Porsche 991.2 Carrera models without Porsche Sport Exhaust / PSE, replacing the restrictive factory catalytic converters with free-flowing 3-inch stainless-steel bypass pipes.

Located immediately downstream of the turbochargers, the factory catalytic converters create substantial post-turbine restriction while also attenuating much of the turbocharger and exhaust sound produced by Porsche's 3.0L twin-turbo flat-six.

SOUL eliminates the catalyst assemblies entirely and replaces them with smooth, mandrel-bent straight-through piping designed to maximize exhaust flow. The result is substantially increased turbocharger sound, a more aggressive exhaust note, sharper throttle response, and additional performance potential—especially when paired with an appropriate ECU calibration.

The Cat Bypass Pipes retain Porsche's factory turbocharger heat shields, maintaining the OEM thermal-protection strategy around the turbos and surrounding engine-bay components.

FITMENT:

• Fits 2017–2019 Porsche 991.2 911 Carrera Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Targa 4 without PSE

• Fits 2017–2019 Porsche 991.2 911 Targa 4S without PSE

• Designed specifically for vehicles without factory Porsche Sport Exhaust / PSE

• Compatible with manual and PDK transmissions where applicable

• Compatible with the factory rear exhaust

• Compatible with SOUL Performance Exhaust Systems for non-PSE cars

• Compatible with SOUL Sport Headers

DETAILS:

• Pair of catless Cat Bypass Pipes

• Replaces both factory catalytic-converter assemblies

• Designed specifically for non-PSE 991.2 Carrera applications

• 3-inch diameter piping

• Straight-through exhaust architecture

• Designed to maximize post-turbo exhaust flow

• Reduces restriction immediately downstream of the turbochargers

• Increases turbocharger spool and whistle sound

• Increases exhaust volume

• Improves throttle response

• Increases performance potential

• Particularly beneficial when paired with ECU tuning

• Retains factory turbocharger heat shields

• Constructed from .065-inch-wall T304L stainless steel

• Smooth mandrel bends

• Thick exhaust flanges

• Fixture-tested prior to shipment

• Direct bolt-on installation

• Detailed installation instructions included

• May trigger a catalyst-efficiency check engine light

• Custom ECU calibration recommended for catalyst-related CEL management on closed-course vehicles

• No product variants

• Designed and manufactured in-house by SOUL Performance Products

• Backed by SOUL's Lifetime Warranty for street and track use

COMPLETE CATALYTIC-CONVERTER DELETE

The SOUL Cat Bypass Pipes completely remove the original Porsche catalytic converters.

The factory exhaust arrangement places the catalysts immediately downstream of the turbochargers.

SOUL replaces those catalyst assemblies with smooth straight-through piping, eliminating the restriction created by the catalyst substrates.

This provides:

• Greater post-turbo exhaust-flow capacity

• Reduced exhaust restriction

• Increased turbocharger sound

• Greater exhaust volume

• Improved throttle response

• Increased tuning potential

3-INCH EXHAUST PATH

SOUL selected:

3-inch diameter piping

to maximize available exhaust flow from the turbochargers.

The large-diameter design is particularly appropriate for modified vehicles where increased boost and airflow create greater exhaust mass flow.

The 3-inch architecture provides additional capacity for combinations involving:

• ECU tuning

• SOUL Sport Headers

• SOUL Performance Exhaust

• Higher boost targets

• Other supporting performance modifications

REDUCED POST-TURBO RESTRICTION

On a turbocharged engine, exhaust restriction after the turbine creates pressure that the turbocharger must work against.

Reducing post-turbine restriction can improve the efficiency with which exhaust gases leave the turbocharger.

The factory catalytic converters are one of the largest restrictions in this section of the 991.2 Carrera exhaust.

Removing them can therefore improve:

• Turbo response

• Throttle response

• Exhaust-flow capacity

• Midrange response

• Power potential

The benefit can become increasingly significant as engine output and boost pressure increase.

INCREASED TURBOCHARGER SOUND

One of the most noticeable changes after removing the factory catalysts is the increase in audible turbocharger activity.

Expect significantly more:

• Turbo spool

• Turbo whistle

• Turbine sound

• Throttle-related acoustic feedback

• Exhaust texture

The factory catalysts suppress a substantial amount of this sound before it ever reaches the rear exhaust.

Removing them makes the turbocharged nature of the 991.2 Carrera considerably more obvious.

EXHAUST SOUND

The Cat Bypass Pipes also increase the overall presence of the engine and exhaust system.

Expect:

• Louder cold starts

• Increased exhaust volume

• Greater engine character under acceleration

• Stronger turbocharger sound

• Increased high-RPM presence

• More audible shifts

• Greater deceleration character

The amount of pops and crackles will depend heavily on the vehicle's ECU calibration.

Unlike PSE-equipped cars, a non-PSE Carrera should not automatically be expected to produce the same factory-programmed pops and bangs simply because the catalytic converters have been removed.

NON-PSE EXHAUST ARCHITECTURE

These Cat Bypass Pipes are specifically designed for the standard non-PSE exhaust system.

That is important because the PSE and non-PSE versions of the 991.2 Carrera use different downstream exhaust arrangements.

SOUL therefore offers separate:

PSE Cat Bypass Pipes

and

Non-PSE Cat Bypass Pipes

with different manufacturer part numbers.

The non-PSE version should not be substituted with the PSE-specific product.

RETAINS THE FACTORY REAR EXHAUST

The Cat Bypass Pipes can be installed while retaining the original non-PSE rear exhaust.

This configuration provides:

• Increased turbocharger sound

• Increased engine character

• Reduced post-turbo restriction

• Retained factory rear muffler

• Retained OEM exterior appearance

Because the standard rear muffler remains installed, this is considerably more restrained than combining the Cat Bypass Pipes with a freer-flowing aftermarket rear exhaust.

WITH SOUL PERFORMANCE EXHAUST

Pairing the Cat Bypass Pipes with SOUL's non-PSE Performance Exhaust creates a much more aggressive overall system.

This combination provides:

• Catless 3-inch post-turbo piping

• Reduced catalyst restriction

• Increased turbo sound

• Increased rear exhaust volume

• Greater throttle response

• More aggressive flat-six character

• Optional Helmholtz anti-drone technology in the Performance Exhaust

Customers seeking a street-driven configuration should carefully consider SOUL's Anti-Drone Performance Exhaust when combining it with these Cat Bypass Pipes.

WITH SOUL SPORT HEADERS

The Cat Bypass Pipes can also be paired with SOUL Sport Headers.

The two products address different sections of the exhaust system:

Sport Headers

Improve exhaust flow before the turbochargers.

Cat Bypass Pipes

Reduce exhaust restriction after the turbochargers.

Together, they provide freer exhaust flow on both sides of the turbocharger assemblies.

WITH ECU TUNING

SOUL specifically notes that substantial additional performance potential is available when the Cat Bypass Pipes are paired with ECU tuning.

A performance calibration can take greater advantage of:

• Reduced post-turbo restriction

• Increased exhaust-flow capacity

• Higher boost targets

• Improved turbocharger response

• Additional supporting modifications

A tune is not required for the pipes to physically fit the vehicle.

However, an ECU calibration may be required to address catalyst-related diagnostic faults after the factory catalysts are removed.

CHECK ENGINE LIGHT

Because the Cat Bypass Pipes completely remove the factory catalytic converters, the vehicle's catalyst-monitoring system may detect that the original emissions equipment is no longer present.

SOUL explicitly states that this product:

may trigger a check engine light.

A custom ECU calibration may be used to address catalyst-related diagnostic faults on vehicles used for closed-course competition.

DasMotoring does not advertise the Cat Bypass Pipes as a guaranteed CEL-free product.

NO PUBLISHED STANDALONE DYNO FIGURE

SOUL states that performance gains are available from the freer-flowing Cat Bypass Pipes and notes that additional gains can be achieved with ECU calibration.

However, the current manufacturer page for the non-PSE version does not publish a controlled standalone horsepower or torque figure.

DasMotoring therefore does not advertise a specific numerical power increase for this product.

NO PUBLISHED WEIGHT FIGURE

The Cat Bypass Pipes eliminate the heavy factory catalytic-converter assemblies and therefore reduce exhaust-system weight.

However, SOUL's current non-PSE product page does not publish verified factory and SOUL component weights.

DasMotoring therefore does not advertise a numerical weight-savings figure for this particular non-PSE product.

RETAINS FACTORY TURBO HEAT SHIELDS

SOUL intentionally designed the Cat Bypass Pipes to retain the original Porsche turbocharger heat shields.

This helps maintain the factory thermal-management strategy around:

• Turbochargers

• Engine-bay wiring

• Hoses

• Plastic components

• Other heat-sensitive hardware

Removing the catalytic converters does not eliminate the extreme temperatures generated immediately downstream of the turbochargers, making proper heat management important.

.065-INCH T304L STAINLESS CONSTRUCTION

Each Cat Bypass Pipe is constructed from:

.065-inch-wall T304L stainless steel

T304L provides:

• High-temperature durability

• Corrosion resistance

• Structural strength

• Long service life

• Suitable properties for repeated street and track heat cycling

SMOOTH MANDREL BENDS

SOUL uses smooth mandrel-bent tubing to maintain a consistent internal flow area through each bend.

This helps avoid the reduced internal diameter that can occur when conventional tubing is bent without proper support.

The result is a smoother path for exhaust gases leaving the turbochargers.

THICK EXHAUST FLANGES

The system incorporates substantial flanges designed to maintain proper sealing and alignment in a high-temperature environment.

Each assembly is manufactured around dedicated fixtures so that turbocharger and downstream exhaust connections remain properly positioned.

FIXTURE-TESTED FITMENT

Every set is tested in a fabrication fixture prior to shipment.

This quality-control step helps verify:

• Pipe alignment

• Flange position

• Downstream exhaust alignment

• Overall dimensional consistency

After inspection, SOUL foam packs the components for shipment.

DIRECT BOLT-ON INSTALLATION

The Cat Bypass Pipes directly replace the original catalytic-converter assemblies.

No permanent chassis modification is required.

SOUL includes detailed installation instructions and describes the job as suitable for experienced DIY enthusiasts with the appropriate tools and mechanical experience.

CAT BYPASS VS. SPORT CATALYTIC CONVERTERS

SOUL Cat Bypass Pipes

• $1,975.00

• Completely catless

• 3-inch piping

• Maximum available catalyst-section flow

• Maximum turbocharger sound

• Lower purchase price

• May trigger a catalyst-related CEL

• Intended for competition / off-road use

SOUL Sport Catalytic Converters

• Retain high-flow catalytic converters

• More street-oriented configuration

• Increased turbocharger sound and throttle response

• Designed to avoid the compromises associated with fully catless pipes

• Higher purchase price

The Cat Bypass Pipes are the more aggressive choice for a closed-course vehicle where maximum flow is the priority.

PSE VS. NON-PSE CAT BYPASS PIPES

SOUL offers separate Cat Bypass Pipe systems for the two 991.2 exhaust configurations.

Without PSE

• SOUL PN: POR.9912.CBP

• $1,975.00

• Designed around the standard non-PSE exhaust architecture

With PSE

• Separate PSE-specific product

• Different downstream architecture

• Different SOUL part number

These should remain separate products within the DasMotoring catalog.

EMISSIONS / COMPETITION USE NOTE

The SOUL Cat Bypass Pipes completely remove the factory catalytic converters.

This product is not CARB certified and SOUL specifies it for off-road / competition use only.

Use on an emissions-controlled vehicle operated on public roads may violate applicable federal, state, or local laws.

Customers are responsible for determining the legality of their complete vehicle configuration and intended use.

Product Description

The SOUL Sport Headers are a direct bolt-on performance upgrade for the 2017–2019 Porsche 991.2 Carrera platform, engineered to improve exhaust flow into the turbochargers, sharpen boost response, increase power, reduce weight, and enhance the sound of Porsche's turbocharged 3.0L flat-six.

Unlike the factory double-wall exhaust manifolds, SOUL uses a single-wall T304L stainless-steel design with optimized runners and a purpose-built 3-into-1 merge collector. The revised geometry improves exhaust-gas velocity as the three cylinders on each bank converge before entering the turbocharger.

SOUL also increases the header outlet diameter from approximately 1.54 inches at the factory turbo inlet interface to 1.63 inches, providing a smoother transition into the turbocharger.

The complete SOUL header set weighs approximately 9.9 lbs, compared with approximately 15.3 lbs for the corresponding factory components, reducing weight by approximately 5.4 lbs / 2.4 kg.

These headers fit both PSE and non-PSE 991.2 Carrera models, making them a shared performance component across the entire turbocharged 991.2 Carrera range.

FITMENT:

• Fits 2017–2019 Porsche 991.2 911 Carrera

• Fits 2017–2019 Porsche 991.2 911 Carrera Cabriolet

• Fits 2017–2019 Porsche 991.2 911 Carrera S

• Fits 2017–2019 Porsche 991.2 911 Carrera S Cabriolet

• Fits 2017–2019 Porsche 991.2 911 Carrera 4

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Cabriolet

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Cabriolet

• Fits 2017–2019 Porsche 991.2 911 Targa 4

• Fits 2017–2019 Porsche 991.2 911 Targa 4S

• Fits 2018–2019 Porsche 991.2 911 Carrera T

• Fits 2017–2019 Porsche 991.2 911 Carrera GTS

• Fits 2017–2019 Porsche 991.2 911 Carrera GTS Cabriolet

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 GTS

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 GTS Cabriolet

• Fits 2017–2019 Porsche 991.2 911 Targa 4 GTS

• Compatible with factory Porsche Sport Exhaust / PSE

• Compatible with non-PSE Carrera applications

• Compatible with manual and PDK transmissions where applicable

• Compatible with factory catalytic converters

• Compatible with SOUL Sport Catalytic Converters

• Compatible with SOUL Cat Bypass Pipes where applicable

• Compatible with factory rear exhaust systems

• Compatible with SOUL rear exhaust upgrades

DETAILS:

• Complete pair of performance exhaust headers

• Fits the entire 991.2 Carrera 3.0L turbocharged platform

• PSE is not required

• Optimized 3-into-1 merge collector

• Improved exhaust-gas velocity into the turbocharger

• Designed to improve turbo response

• Designed to improve throttle response

• Increased power potential throughout the RPM range

• Header outlet measures approximately 1.63" ID

• Factory turbo inlet measures approximately 1.54" ID

• Designed for a smooth transition into the turbocharger

• Eliminates the obstructive internal support found in the factory center runner

• Single-wall construction replaces Porsche's factory double-wall manifold design

• Sharper exhaust tone than the factory manifolds

• Increased turbocharger sound

• More pronounced burbles and pops

• Designed without compromising normal ground clearance

• SOUL header set weighs approximately 9.9 lbs / 4.5 kg

• Factory header components weigh approximately 15.3 lbs / 6.9 kg

• Saves approximately 5.4 lbs / 2.4 kg

• Constructed from mandrel-bent .065-inch-wall T304L stainless steel

• Laser-cut flanges

• Back-purged TIG welded

• Fabricated in heavy-gauge aluminum fixtures to minimize distortion

• Fixture-tested for proper fitment

• New high-grade installation hardware included

• OEM Porsche gaskets included

• Direct bolt-on installation

• No catalyst selection

• No PSE-specific hardware variant

• No transmission-specific variant

• Designed and manufactured in-house by SOUL Performance Products

• Backed by SOUL's Lifetime Warranty for street and track use

OPTIMIZED 3-INTO-1 MERGE COLLECTOR:

Each bank of Porsche's 3.0L flat-six feeds three cylinders into a turbocharger.

SOUL redesigned the way those three exhaust runners converge by incorporating an optimized 3-into-1 merge collector.

The objective is to maintain exhaust-gas velocity as the individual runners transition into the turbocharger inlet.

Improved collector geometry can help provide:

• Faster turbo response

• Improved throttle response

• Stronger transient response

• More usable power before a transmission downshift

• Improved power throughout the RPM range

This is particularly useful on a turbocharged engine because the energy and velocity of the exhaust gases entering the turbine directly influence turbocharger response.

FACTORY HEADER RESTRICTION:

SOUL identified several limitations in the original Porsche manifold design.

One notable restriction is an internal support structure in the factory middle runner.

That obstruction sits directly in the exhaust stream and interrupts what would otherwise be a smoother path from the cylinder head toward the collector and turbocharger.

SOUL eliminates this obstruction and redesigns the runner and collector architecture around performance rather than mass-production constraints.

1.63-INCH HEADER OUTLET:

SOUL measured the factory turbocharger inlet at approximately:

1.54 inches inside diameter

The SOUL header outlet is approximately:

1.63 inches inside diameter

This slightly larger header outlet provides a smoother transition into the turbocharger and allows the header's internal volume and collector geometry to better complement the turbocharger's airflow requirements.

IMPROVED BOOST RESPONSE:

The Sport Headers are not designed solely around peak horsepower.

SOUL specifically focused on improving boost and transient response.

By improving:

• Runner geometry

• Collector design

• Exhaust-gas velocity

• Flow into the turbine

the turbochargers can respond more quickly when additional engine load is commanded.

The practical effect is intended to be a car that feels more responsive before a downshift or major RPM change is required.

DYNO-TESTED PERFORMANCE:

SOUL performed independent Mustang-dyno testing at Apex Autoworks.

The test vehicle was a 991.2 Carrera Base already equipped with:

• SOUL Sport Catalytic Converters

• SOUL Performance Exhaust

• COBB Accessport Stage 2 calibration

The header comparison consisted of:

3 before runs

and

6 after runs

with the representative curves averaged for comparison.

SOUL recorded maximum improvements of approximately:

+12 wheel horsepower

and

+20 lb-ft of torque

after adding the Sport Headers.

SOUL notes that these gains appeared quickly in the power curve and continued through redline.

IMPORTANT DYNO CONTEXT:

The published +12 whp / +20 lb-ft figures should not be interpreted as guaranteed gains on an otherwise-stock 991.2 Carrera.

The test vehicle already had:

• Sport Catalytic Converters

• Performance Exhaust

• COBB Stage 2 ECU calibration

Those components remained constant during the before-and-after header testing, so the published result demonstrates the incremental benefit of the headers within that modified configuration.

Actual gains will depend on:

• Carrera model

• ECU calibration

• Fuel

• Catalytic-converter configuration

• Rear exhaust

• Turbocharger configuration

• Ambient conditions

• Dyno type

ADDITIONAL TUNING POTENTIAL:

SOUL notes that a custom calibration can take further advantage of the increased exhaust flow provided by the headers.

Because the headers improve exhaust delivery into the turbochargers, additional calibration can potentially optimize:

• Boost response

• Load targets

• Ignition strategy

• Torque delivery

• Overall power

A custom tune is not required simply because the Sport Headers are installed.

SINGLE-WALL CONSTRUCTION:

Porsche uses a double-wall factory manifold.

SOUL replaces it with a single-wall stainless-steel design.

In addition to contributing to the weight reduction, the single-wall construction allows more of the exhaust's acoustic character to pass through the system.

SOUL describes the resulting sound as:

• Sharper

• More defined

• More aggressive

• More turbo-focused

while avoiding undesirable exhaust characteristics during normal operation.

INCREASED TURBO SOUND:

The Sport Headers increase the audible character of the turbochargers.

Expect more:

• Turbo spool

• Turbine sound

• Exhaust texture

• Mechanical character

• Throttle-related sound

The change becomes increasingly noticeable when the headers are combined with freer-flowing catalytic converters or rear exhaust components.

POPS & BURBLES:

SOUL also notes an increase in:

• Pops during shifts

• Burbling during deceleration

• Sharper transient exhaust sounds

The amount of this behavior will depend heavily on the vehicle's ECU calibration and selected driving mode.

The headers themselves do not create artificial pops; rather, their freer-flowing and single-wall construction allows more of the existing engine and calibration behavior to be heard.

SOUND WITH FACTORY EXHAUST:

When paired with factory catalytic converters and the factory rear exhaust, the Sport Headers provide a relatively subtle but meaningful sound change.

Expect:

• Sharper tone

• Slight increase in overall volume

• More audible turbocharger activity

• Greater engine character under load

• Improved response without dramatically changing cruising behavior

This is the most conservative configuration.

WITH SOUL SPORT CATALYTIC CONVERTERS:

Pairing the Sport Headers with SOUL Sport Catalytic Converters creates a significantly freer-flowing exhaust path upstream and downstream of the turbochargers.

The combination provides:

• Improved pre-turbo exhaust flow

• Reduced post-turbo catalyst restriction

• Faster boost response

• Increased turbo sound

• Greater exhaust volume

• Increased power potential

The Sport Catalytic Converters retain a catted configuration.

WITH SOUL CAT BYPASS PIPES:

Combining the Sport Headers with Cat Bypass Pipes removes post-turbo catalyst restriction entirely.

This creates a considerably more aggressive configuration with:

• Maximum post-turbo exhaust flow

• Stronger turbocharger sound

• Greater exhaust volume

• Reduced exhaust-system weight

• Increased tuning potential

Catless components introduce separate emissions and diagnostic considerations that do not result from the Sport Headers themselves.

WITH SOUL VALVED EXHAUST:

For PSE-equipped cars, combining the headers with SOUL's Valved Exhaust provides:

• Improved exhaust flow into the turbochargers

• Full 3-inch valves-open rear exhaust architecture

• Chambered X-pipe

• Increased turbo and exhaust sound

• Retained active sound control

• Resonated quieter secondary exhaust path

This provides significantly more sound and flow while retaining useful street-driving flexibility.

WITH SOUL X-PIPE EXHAUST:

Pairing the headers with SOUL's non-valved X-Pipe creates a more consistently aggressive configuration.

The combination provides:

• Improved pre-turbo flow

• Full 3-inch rear exhaust path

• Chambered X-pipe

• Helmholtz anti-drone system

• Increased turbo sound

• Increased exhaust volume at all times

• Greater exhaust-system weight reduction

5.4-LB WEIGHT REDUCTION:

SOUL publishes the following weights:

Factory Headers:
Approximately 15.3 lbs

SOUL Sport Headers:
Approximately 9.9 lbs

Weight Savings:
Approximately 5.4 lbs / 2.4 kg

That represents approximately a 35% reduction in the weight of the components being replaced.

.065-INCH T304L STAINLESS CONSTRUCTION:

SOUL manufactures each set from:

Mandrel-bent .065-inch-wall T304L stainless steel

This material provides:

• High-temperature durability

• Corrosion resistance

• Structural strength

• Consistent wall thickness

• Long-term reliability

BACK-PURGED TIG WELDING:

The headers are TIG welded while being back purged with argon.

Back purging protects the interior of the stainless tubing during welding and helps ensure:

• Proper weld penetration

• Reduced internal oxidation

• Smooth internal weld quality

• Long-term weld durability

SOUL specifically uses ARCAL Prime argon gas during fabrication.

HEAVY-GAUGE FABRICATION FIXTURES:

SOUL fabricates the headers in thick-gauge aluminum fixtures.

These fixtures serve two purposes:

• Maintain precise component positioning

• Act as heat sinks during welding

Controlling heat during fabrication reduces the potential for warping and helps maintain consistent fitment from one header set to the next.

OEM PORSCHE GASKETS INCLUDED:

SOUL includes:

• New high-grade mounting hardware

• OEM Porsche exhaust gaskets

with each header set.

This allows the headers to be installed without requiring the customer to separately source normal replacement sealing hardware.

DIRECT BOLT-ON INSTALLATION:

The Sport Headers are designed as direct replacements for the factory manifolds.

Every assembly is:

• Quality checked

• Fixture tested

• Foam packed prior to shipment

No permanent chassis or exhaust modification is required.

PSE & NON-PSE COMPATIBILITY:

Unlike several downstream 991.2 exhaust components, the Sport Headers are not specific to Porsche Sport Exhaust.

The same header set fits:

991.2 Carrera with PSE

and

991.2 Carrera without PSE

This is because the PSE/non-PSE differences occur farther downstream in the exhaust system.

The header architecture at the engine and turbocharger interface remains compatible with both configurations.

EMISSIONS CONFIGURATION:

The Sport Headers themselves do not replace the catalytic converters.

When installed with the factory catalysts, the vehicle retains its existing catalytic-converter assemblies and oxygen-sensor architecture.

If the headers are paired with separate Sport Catalytic Converters or Cat Bypass Pipes, emissions compliance should be evaluated based on the complete installed configuration.

Product Description

The SOUL Performance Exhaust System is designed specifically for 2017–2019 Porsche 991.2 Carrera and Carrera S models without Porsche Sport Exhaust / PSE, addressing one of the most common complaints with the factory non-PSE exhaust: it is simply too quiet.

SOUL developed the system to add substantially more turbocharged flat-six tone and volume while maintaining street-friendly drivability. Because non-PSE 991.2 Carreras are particularly susceptible to cabin resonance in the 1,800–2,200 RPM range, SOUL offers the system both with and without tuned Helmholtz anti-drone tubes.

The Anti-Drone version is the preferred configuration for street-driven cars, using side-branch Helmholtz chambers to target undesirable cruising frequencies without muting the exterior exhaust sound. For customers prioritizing minimum cost and weight, SOUL also offers a simplified version without the anti-drone tubes. SOUL states that the exterior volume and tone are essentially the same between the two configurations; the primary difference is the reduction in cabin drone.

Multiple exhaust-tip configurations are available, but tip compatibility depends heavily on whether the car is a Base or S model and whether factory or SOUL catalytic converters / Cat Bypass Pipes are installed.

FITMENT:

• Fits 2017–2019 Porsche 991.2 911 Carrera Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Cabriolet without PSE

• Designed specifically for cars without factory Porsche Sport Exhaust / PSE

• Available for Base-type and S-type factory exhaust configurations

• Compatible with manual and PDK transmissions where applicable

• Compatible with factory catalytic converters when the correct tip configuration is used

• Compatible with SOUL Sport Catalytic Converters

• Compatible with SOUL Cat Bypass Pipes

DETAILS:

• Non-valved rear Performance Exhaust System

• Available with Helmholtz Anti-Drone Tubes

• Available without Anti-Drone Tubes

• Developed specifically around the non-PSE 991.2 Carrera platform

• Increased flat-six exhaust tone and volume

• Increased turbocharged engine character

• Aggressive exterior sound without requiring factory PSE

• Anti-drone system targets the platform's troublesome 1,800–2,200 RPM range

• Helmholtz chambers reduce undesirable frequencies without placing conventional mufflers directly in the exhaust stream

• Version without Anti-Drone Tubes retains essentially the same exterior volume and tone

• With Anti-Drone Tubes weighs approximately 16.7 lbs

• Comparable factory exhaust components weigh approximately 17.35 lbs

• Anti-Drone configuration saves approximately 0.65 lb / 0.3 kg

• Constructed from mandrel-bent .065-inch-wall T304L stainless steel

• Back-purged TIG welded

• Each exhaust is fixture-tested before shipment

• Detailed installation instructions included

• Designed for straightforward bolt-on installation

• Available with OEM-tip reuse where compatible

• Available with Carbon Fiber tips

• Available with Polished Chrome tips

• Available with Black Chrome tips

• Backed by SOUL Performance Products' Lifetime Warranty for street and track use

DEVELOPED SPECIFICALLY FOR THE NON-PSE 991.2

The standard-exhaust 991.2 Carrera has a substantially more subdued exhaust character than many owners expect from a Porsche 911.

SOUL's development goal was to create a rear exhaust that was:

• Simple

• Lightweight

• Aggressive

• Street-drivable

• Resistant to objectionable cabin drone

Instead of adapting a PSE exhaust to the non-PSE car, SOUL developed this system around the standard exhaust architecture.

THE 1,800–2,200 RPM DRONE PROBLEM

SOUL identified approximately:

1,800–2,200 RPM

as the critical resonance range on non-PSE 991.2 Carreras fitted with freer-flowing rear exhausts.

This is especially important because normal street and highway driving can place the engine directly within this range for extended periods.

An exhaust that sounds excellent under acceleration can therefore become tiring during steady-state cruising if those frequencies are not properly controlled.

HELMHOLTZ ANTI-DRONE TUBES

SOUL tested several approaches during development, including:

• Conventional resonators

• Helmholtz resonators

• Straight-pipe configurations

• Basic X-pipe arrangements

SOUL found that conventional resonators reduced overall engine tone and volume but did not address the problematic drone effectively enough.

The final street-oriented design therefore uses Helmholtz resonators, also commonly referred to as anti-drone tubes.

These are acoustically tuned side branches rather than conventional flow-through mufflers.

Their purpose is to cancel or reduce specific undesirable frequencies while allowing the main exhaust stream to remain comparatively unrestricted.

WITH ANTI-DRONE TUBES

The Anti-Drone configuration is the more refined version of the exhaust.

It retains the increased exterior sound of the SOUL system while specifically reducing cabin resonance in the 1,800–2,200 RPM range.

This configuration is particularly appropriate for:

• Daily-driven cars

• Highway use

• Long-distance driving

• PDK cars that frequently cruise at lower RPM

• Customers sensitive to low-frequency cabin resonance

• Vehicles also fitted with freer-flowing Sport Catalytic Converters

SOUL considers this configuration the best balance of sound and drivability.

WITHOUT ANTI-DRONE TUBES

SOUL also offers the system without the Helmholtz chambers.

This configuration is:

• Less expensive

• Lighter

• Mechanically simpler

SOUL specifically states that the exterior volume and tone remain the same as the Anti-Drone version.

The primary difference is that the non-Helmholtz version does not provide the same reduction in the platform's problematic 1,800–2,200 RPM cabin resonance.

This makes it more appropriate for customers prioritizing:

• Lowest purchase price

• Minimum weight

• Track use

• Maximum simplicity

• Drivers less concerned about cruising drone

SOUL does not currently publish the exact weight of the version without the Anti-Drone Tubes.

SOUND CHARACTER

Compared with the extremely subdued factory non-PSE exhaust, expect:

• Increased cold-start volume

• Greater flat-six character

• Stronger acceleration sound

• Increased turbocharger presence

• More pronounced downshift sound

• Increased pops and crackles where generated by the factory ECU calibration

• Greater exhaust presence throughout the RPM range

• A more engaging driving experience

The Anti-Drone and Non-Anti-Drone versions are designed to have essentially the same exterior exhaust volume and tone.

WITH FACTORY CATALYTIC CONVERTERS

The SOUL rear exhaust can be paired with the factory catalytic converters, but tip fitment becomes particularly important.

For Base cars with factory catalytic converters:

The factory Base exhaust tips must be retained.

SOUL specifically states that Base cars running factory catalysts should use the OEM tips.

For S models with factory catalytic converters:

The factory S-model tips are not compatible.

SOUL states that the car must instead use Base-model dual tips.

This should be confirmed before ordering parts for a Carrera S or Carrera 4S retaining the factory catalytic converters.

WITH SOUL SPORT CATALYTIC CONVERTERS

The exhaust was developed and tested with SOUL Sport Catalytic Converters because they are a common upgrade on the 991.2 Carrera.

Pairing the two systems provides:

• Increased turbocharger sound

• Increased overall exhaust volume

• Reduced post-turbo restriction

• Greater throttle response from the Sport Catalytic Converters

• More aggressive rear exhaust sound

• Ability to use SOUL exhaust-tip configurations where compatible

The Anti-Drone Tubes become particularly valuable as upstream exhaust components increase overall sound.

WITH SOUL CAT BYPASS PIPES

The Performance Exhaust can also be combined with SOUL's Cat Bypass Pipes.

This creates a substantially more aggressive exhaust configuration with:

• No catalytic converters

• Greater turbocharger sound

• Increased exhaust volume

• Reduced post-turbo restriction

• More prominent pops and crackles

• Greater cabin presence

Customers combining the Performance Exhaust with Cat Bypass Pipes should expect significantly more sound than with the factory catalytic converters.

BASE MODEL TIP COMPATIBILITY

The Base Carrera configuration can be ordered with:

Reuse OEM Tips

Carbon Fiber Tips

Polished Chrome Tips

Black Chrome Tips

However, there is an important upstream-component restriction:

When retaining the factory catalytic converters, SOUL specifies that Base models must use the OEM tips.

The SOUL tip configurations are intended for compatible exhaust combinations using SOUL Sport Catalytic Converters or Cat Bypass Pipes.

CARRERA S TIP COMPATIBILITY

Carrera S and Carrera 4S cars have a different factory exhaust/tip arrangement.

SOUL specifically states:

Factory S-model tips are not compatible with this exhaust.

When retaining the factory catalytic converters, an S model must use Base-model dual exhaust tips.

When using:

• SOUL Sport Catalytic Converters

• SOUL Cat Bypass Pipes

the S model can instead use SOUL:

• Carbon Fiber tips

• Polished Chrome tips

• Black Chrome tips

This compatibility distinction is critical when configuring an S-model order.

CARBON FIBER TIPS

The Carbon Fiber configuration provides the most motorsport-oriented appearance.

It is available for compatible Base and S configurations.

With Anti-Drone Tubes: $3,115.00

Without Anti-Drone Tubes: $2,575.00

POLISHED CHROME TIPS

Polished Chrome provides a traditional bright exhaust finish.

It is available for compatible Base and S configurations.

With Anti-Drone Tubes: $3,115.00

Without Anti-Drone Tubes: $2,575.00

BLACK CHROME TIPS

Black Chrome provides the darkest of the available SOUL tip configurations.

It is available for compatible Base and S configurations.

With Anti-Drone Tubes: $3,355.00

Without Anti-Drone Tubes: $2,755.00

REUSE OEM TIPS

The OEM-tip configuration is the simplest and least expensive option for the Base model.

With Anti-Drone Tubes: $2,515.00

Without Anti-Drone Tubes: $1,975.00

For an S-model car, do not assume that the factory S tips can be reused. SOUL explicitly states that they are incompatible.

WEIGHT

For the Anti-Drone configuration, SOUL publishes:

Factory Exhaust Components:
Approximately 17.35 lbs

SOUL Performance Exhaust with Anti-Drone Tubes:
Approximately 16.7 lbs

Weight Savings:
Approximately 0.65 lb / 0.3 kg

The primary purpose of this version is therefore sound and drone management rather than major weight reduction.

SOUL states that the version without Anti-Drone Tubes is lighter but does not currently publish an exact weight.

CONSTRUCTION

Each exhaust is hand fabricated from:

Mandrel-bent .065-inch-wall T304L stainless steel

SOUL uses back-purged TIG welding to provide strong, durable welds while protecting the interior of the stainless tubing from excessive oxidation during fabrication.

Each completed exhaust undergoes in-house quality control.

FIXTURE-TESTED FITMENT

Every system is installed in a dedicated fabrication fixture before shipment to verify alignment and fitment.

SOUL then foam packs the exhaust to reduce the risk of cosmetic or structural damage during transportation.

BOLT-ON INSTALLATION

The system is designed as a bolt-on rear exhaust upgrade.

SOUL includes detailed installation instructions and describes the installation as suitable for experienced DIY enthusiasts.

The rear exhaust itself does not replace the vehicle's:

• Turbochargers

• Headers

• Catalytic converters

• Oxygen sensors

unless separate SOUL upstream components are installed at the same time.

PERFORMANCE

SOUL's current product page focuses primarily on:

• Sound

• Drone reduction

• Weight

• Construction

• Drivability

It does not publish a controlled standalone horsepower or torque result for this rear exhaust.

DasMotoring therefore does not advertise a specific numerical power increase from the Performance Exhaust System alone.

PERFORMANCE EXHAUST VS. VALVED EXHAUST PACKAGE

Performance Exhaust System

• Starts at $1,975

• Non-valved

• Fixed exhaust sound

• Available with or without Anti-Drone Tubes

• Retains factory catalysts unless upgraded separately

• Simpler construction

• Lower purchase price

• Best suited to customers who do not need active sound control

SOUL Valved Exhaust Package

• Starts at $5,995

• Adds active valve control

• Includes high-flow Sport Catalytic Converters

• Includes a dedicated quieter secondary flow path

• Remote valve controller

• HomeLink integration capability

• Greater sound-control flexibility

The Performance Exhaust is the simpler solution for owners who want their non-PSE Carrera to sound significantly more engaging without adding a complete valved turbo-back package.

Product Description

The SOUL Valved Exhaust Package is a comprehensive performance solution developed specifically for 2017–2019 Porsche 991.2 Carrera and Carrera S models not equipped with factory Porsche Sport Exhaust / PSE.

Rather than requiring an expensive factory PSE retrofit, SOUL combines high-flow Sport Catalytic Converters, a bespoke X-pipe exhaust, a secondary muffled flow path, and an independent valve-control system to give non-PSE cars a genuine dual-personality exhaust.

With the valves open, the system emphasizes exhaust flow, turbocharger sound, and a smoother, higher-pitched flat-six exhaust note. Close the valves and exhaust is redirected through the secondary X-pipe muffler path, substantially reducing exterior volume and cabin presence for normal street and highway use.

Valve operation can be controlled using the supplied remote system or programmed into compatible in-car HomeLink buttons.

SOUL describes expected package-level gains of approximately 20 horsepower and 20 lb-ft of torque, while the high-flow catalysts and freer-flowing exhaust architecture also increase turbocharger sound and throttle response.

FITMENT:

• Fits 2017–2019 Porsche 991.2 911 Carrera Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4 Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera S Cabriolet without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Coupe without PSE

• Fits 2017–2019 Porsche 991.2 911 Carrera 4S Cabriolet without PSE

• Designed specifically for vehicles without factory Porsche Sport Exhaust / PSE

• Carrera Base models can reuse the factory exhaust tips

• Carrera S models must use SOUL exhaust tips

• Compatible with manual and PDK transmissions where applicable

PACKAGE INCLUDES:

• SOUL high-flow Sport Catalytic Converters

• SOUL bespoke valved X-pipe rear exhaust

• Secondary muffled flow path

• Exhaust valves

• Remote valve-control system

• Required exhaust hardware

• Selected exhaust-tip configuration where applicable

DETAILS:

• Complete performance package for non-PSE 991.2 Carreras

• Provides a valved exhaust solution without requiring a factory PSE retrofit

• High-flow Sport Catalytic Converters

• Bespoke X-pipe architecture

• Secondary flow path through an X-pipe muffler

• Significant difference between valves-open and valves-closed sound levels

• Designed to reduce cabin presence when the valves are closed

• Increased turbocharger sound

• Increased exhaust volume

• Smoother, higher-pitched exhaust character

• Improved throttle response

• SOUL describes expected gains of approximately 20 horsepower and 20 lb-ft of torque

• Valve operation controlled by remote

• Compatible with programming to vehicle HomeLink buttons

• No factory PSE control system required

• Base Carrera models may reuse OEM tips

• Carrera S models require compatible SOUL exhaust tips

• Available with Polished Chrome tips

• Available with Black Chrome tips

• Carbon Fiber tip configuration also available

• Constructed from mandrel-bent .065-inch-wall T304L stainless steel

• Back-purged TIG welded

• Each system is fixture-tested prior to shipment

• Designed and manufactured by SOUL Performance Products

• Backed by SOUL's Lifetime Warranty for street and track use

A VALVED EXHAUST SOLUTION FOR NON-PSE CARS

A factory non-PSE 991.2 Carrera does not have the same driver-selectable exhaust functionality as a PSE-equipped car.

Retrofitting the complete Porsche PSE system can require:

• Additional exhaust hardware

• Valve-control components

• Vehicle coding

• Additional installation labor

• Potential bumper or exhaust-interface considerations

SOUL developed this package as a dedicated alternative.

The package gives the non-PSE Carrera a true valved exhaust system while simultaneously upgrading the catalytic converters and rear exhaust.

HIGH-FLOW SPORT CATALYTIC CONVERTERS

The package replaces the restrictive factory catalyst assemblies with SOUL's high-flow Sport Catalytic Converters.

Benefits include:

• Increased exhaust flow

• Improved throttle response

• Increased turbocharger sound

• Greater exhaust presence

• Increased performance potential

• Retained catalytic-converter functionality

SOUL developed the Sport Catalytic Converters to improve flow and sound while avoiding the diagnostic compromises associated with catless bypass pipes.

VALVES OPEN

With the valves open, the system prioritizes exhaust flow and sound.

Expect:

• Significantly increased exhaust volume

• Greater turbocharger whistle

• More turbo spool sound

• Stronger flat-six character

• Increased throttle-related exhaust response

• More pronounced crackles and burbles

• Smoother exhaust-bank blending

• Higher-pitched performance tone

• Greater presence throughout the RPM range

This is the aggressive performance mode of the system.

VALVES CLOSED

Closing the valves redirects exhaust through the package's secondary X-pipe muffler path.

This significantly reduces:

• Exterior exhaust volume

• Cabin presence

• Low-speed sound intensity

• Highway exhaust presence

The engine and turbochargers remain more audible than with the original factory non-PSE exhaust, but the system becomes substantially more civilized than its valves-open configuration.

BESPOKE X-PIPE

SOUL uses an X-pipe architecture to blend the exhaust streams from the opposing cylinder banks.

This helps produce a sound that is:

• Smoother

• More cohesive

• Higher pitched

• More characteristic of Porsche's traditional flat-six exhaust note

This differs from simply increasing exhaust volume with independent left and right pipes.

The X-pipe is an important part of SOUL's attempt to restore some of the naturally aspirated character lost when Porsche transitioned the Carrera platform to turbocharging.

SECONDARY X-PIPE MUFFLER

The quieter flow path incorporates an X-pipe muffler rather than simply closing a valve against the primary exhaust route.

When the valves close, exhaust is redirected through this secondary section to meaningfully reduce sound level.

SOUL developed the system around maintaining a substantial difference between:

Aggressive Valves-Open Operation

and

Civilized Valves-Closed Operation

This makes the package particularly appropriate for cars that see both spirited driving and regular street use.

ANTI-DRONE DEVELOPMENT

The 991.2 Carrera platform can develop undesirable low-frequency cabin resonance when exhaust restriction is reduced.

SOUL therefore incorporated its anti-drone development into this package rather than focusing solely on maximum exterior volume.

The objective is to retain:

• Strong valves-open sound

• Comfortable highway operation

• Reduced undesirable cabin resonance

• A meaningful difference between open and closed modes

The system should still be expected to have greater cabin presence than the original non-PSE exhaust, particularly with the valves open.

REMOTE VALVE CONTROL

Because the vehicle did not leave the factory with PSE, the SOUL package provides its own exhaust-valve control system.

The driver can switch between the exhaust flow paths using a supplied remote.

This allows the exhaust character to be changed independently from the vehicle's factory driving modes.

HOMELINK INTEGRATION

SOUL also allows the valve-control commands to be programmed to compatible HomeLink buttons inside the vehicle.

This can provide a cleaner everyday interface by eliminating the need to keep a separate remote immediately accessible.

The driver can then command the exhaust valves using the integrated HomeLink controls.

PERFORMANCE

SOUL describes the complete package as delivering approximately:

Up to +20 horsepower

and

Up to +20 lb-ft of torque

through the combination of:

• High-flow catalytic converters

• Reduced exhaust restriction

• Large-diameter exhaust tubing

• Freer-flowing X-pipe architecture

These are manufacturer-stated expected package gains rather than a published controlled dyno comparison with detailed baseline conditions.

Actual results will vary depending on vehicle model, fuel, ECU calibration, environmental conditions, and other modifications.

THROTTLE RESPONSE

Reducing exhaust restriction downstream of the turbochargers can improve engine response.

SOUL specifically identifies increased throttle response as part of the package's performance improvement.

The freer-flowing catalytic converters and rear exhaust work together rather than addressing only one restrictive portion of the factory system.

TURBOCHARGER SOUND

Replacing the restrictive factory catalyst assemblies significantly increases the amount of turbocharger sound transmitted through the exhaust.

Expect more:

• Turbo whistle

• Turbo spool

• Turbine sound

• Throttle-related acoustic feedback

• Deceleration character

The result makes the turbocharged nature of the 991.2 Carrera considerably more apparent.

BASE CARRERA TIP FITMENT

Carrera Base models can reuse their original factory exhaust tips.

This makes the Reuse OEM Tips configuration the least expensive option.

Base-model customers can alternatively select SOUL tips if they want to change the exterior appearance.

CARRERA S TIP FITMENT

Carrera S models without PSE cannot use the Reuse OEM Tips configuration.

SOUL specifically requires these vehicles to use compatible SOUL exhaust tips with the Valved Exhaust Package.

Carrera S customers should therefore select:

• Polished Chrome

• Black Chrome

• Carbon Fiber

rather than the OEM-tip option.

POLISHED CHROME TIPS

The Polished Chrome configuration provides a bright, traditional appearance that complements Porsche's factory bright exhaust trim.

Package Price: $6,395.00

BLACK CHROME TIPS

The Black Chrome configuration provides a darker metallic finish for a more understated appearance.

Package Price: $6,595.00

CARBON FIBER TIPS

The Carbon Fiber configuration provides the most motorsport-oriented appearance of the available tip selections.

Package Price: $6,595.00

REUSE OEM TIPS

Carrera Base owners who prefer the original exterior appearance can retain the factory tips.

This also provides the lowest package price.

Package Price: $5,995.00

Carrera S customers should not select this configuration.

CONSTRUCTION

The exhaust components are manufactured from:

Mandrel-bent .065-inch-wall T304L stainless steel

SOUL uses back-purged TIG welding to promote proper weld penetration and protect the interior of the stainless tubing during fabrication.

Each system is built and inspected in-house before shipment.

BOLT-ON FITMENT

SOUL designs and fixture-tests the system around the stock vehicle.

The package is specifically engineered so customers do not need to modify the rear bumper simply to accommodate the exhaust outlets.

That is particularly useful on non-PSE vehicles, where converting to factory PSE hardware can otherwise involve additional fitment considerations.

VALVED PACKAGE VS. FACTORY NON-PSE EXHAUST

Factory Non-PSE Exhaust

• Fixed exhaust behavior

• Quiet factory calibration

• Restrictive factory catalysts

• No driver-controlled exhaust valves

• Factory rear exhaust

SOUL Valved Exhaust Package

• High-flow Sport Catalytic Converters

• Valved rear exhaust

• X-pipe architecture

• Secondary muffled flow path

• Remote valve control

• HomeLink integration capability

• Increased turbocharger sound

• Increased exhaust volume

• Manufacturer-stated gains up to approximately 20 hp / 20 lb-ft

The package essentially adds the sound-control flexibility missing from the factory non-PSE system while also improving exhaust flow.

VALVED PACKAGE VS. FACTORY PSE RETROFIT

The SOUL package is not a replica of Porsche's PSE system.

Instead, it uses its own:

• High-flow catalysts

• X-pipe architecture

• Muffled secondary path

• Valve-control system

SOUL developed this specifically for vehicles that did not originally leave the factory with PSE.

The result is a purpose-built aftermarket solution rather than a conversion using factory PSE components.

EMISSIONS NOTE

The package retains catalytic converters but replaces the original Porsche catalyst assemblies with aftermarket high-flow components.

SOUL's Sport Catalytic Converters are designed to operate without catalyst-related check engine lights under normal conditions, but vehicle condition, calibration, sensor condition, and other modifications can influence diagnostic behavior.

Customers are responsible for determining compliance with applicable emissions laws and regulations for their vehicle and location.