Porsche 992.2 Carrera GTS / Carrera 4 GTS / Targa 4 GTS SOUL Performance Exhaust System

Product Description

The SOUL Performance Exhaust System is a complete turbo-back exhaust solution developed specifically for the Porsche 992.2 Carrera GTS T-Hybrid platform.

The factory GTS powertrain has tremendous exhaust-flow potential thanks to Porsche's electrically assisted turbocharger, but the original system forces exhaust through an extremely restrictive GPF and catalytic-converter assembly before entering the factory valved rear exhaust. SOUL replaces this entire architecture with a high-flow 300-cell Sport Cat Downpipe and full 3.5-inch non-valved rear exhaust system.

By eliminating the factory GPF, replacing the restrictive catalyst, removing the rear muffler and exhaust valves, and increasing exhaust diameter from approximately 2.75 inches to 3.5 inches from the turbo back, SOUL dramatically reduces exhaust restriction while producing a far more aggressive T-Hybrid soundtrack.

Despite its high-output, non-valved design, an integrated Helmholtz chamber is tuned specifically around the GTS platform's 2,200–2,800 RPM resonance range to reduce unwanted cabin drone and rasp.

SOUL reports gains of more than 50 wheel horsepower and 40 lb-ft of torque on factory ECU software, making this one of the most substantial bolt-on performance upgrades available for the 992.2 Carrera GTS.

FITMENT:

• Fits 2025+ Porsche 992.2 911 Carrera GTS Coupe

• Fits 2025+ Porsche 992.2 911 Carrera GTS Cabriolet

• Fits 2025+ Porsche 992.2 911 Carrera 4 GTS Coupe

• Fits 2025+ Porsche 992.2 911 Carrera 4 GTS Cabriolet

• Fits 2025+ Porsche 992.2 911 Targa 4 GTS

• Fits all worldwide 992.2 Carrera GTS T-Hybrid models

• Compatible with the 3.6L T-Hybrid flat-six / electrically assisted turbocharger powertrain

• Replaces the factory downpipe and rear exhaust as one complete turbo-back system

• Does not fit 992.2 Carrera Base, Carrera T, or Carrera S

• Does not fit 992.1 Carrera GTS models

DETAILS:

• Complete turbo-back Performance Exhaust System

• Includes a high-flow Sport Cat Downpipe

• Includes a full non-valved rear exhaust system

• Replaces the restrictive factory GPF section

• Replaces the factory catalytic-converter assembly

• Eliminates the factory rear muffler

• Eliminates the factory exhaust valves

• Increases exhaust diameter from approximately 2.75 inches factory to 3.5 inches turbo-back

• Designed for maximum exhaust flow and performance potential

• Uses a SOUL-designed 300-cell catalytic converter

• Custom-specified precious-metal catalyst coating

• Triple-metal-matrix catalyst-core construction

• Integrated Helmholtz anti-drone chamber

• Helmholtz system targets inherent resonance around 2,200–2,800 RPM

• Tuned system length and internal volume are designed to maximize sound without introducing excessive drone or rasp

• Significantly increases turbocharger sound

• Produces substantially more audible boost activity

• Creates a deeper, more aggressive turbocharged flat-six exhaust note

• Increases sound during deceleration

• Cabin presence remains active but controlled during highway cruising

• SOUL reports 50+ wheel horsepower

• SOUL reports 40+ lb-ft of torque

• Performance gains were achieved on factory ECU software

• Engineered provisions replicate factory GPF pressure-differential behavior

• Designed around factory oxygen-sensor operation

• Helps minimize the potential for a check engine light on otherwise untuned vehicles

• Purpose-built 3D-metal-printed 316L stainless steel turbo inlet

• 3D-printed inlet optimizes flow into the catalytic converter

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

• Back-purged TIG welded using ARCAL Prime argon gas

• Water-jet-cut brackets manufactured to ISO 9001:2015 standards

• Bracket tolerances of approximately ±0.003 inch

• Fabricated using thick-gauge aluminum fixtures to minimize welding distortion

• Every component undergoes rigorous quality control

• Every system is fixture-tested before shipment

• New turbo gasket included

• Necessary installation hardware included

• Foam-packed after final inspection

• Designed and manufactured in-house by SOUL Performance Products in Willow Grove, Pennsylvania

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

COMPLETE TURBO-BACK DESIGN:

The SOUL Performance Exhaust replaces the 992.2 Carrera GTS exhaust system beginning immediately after the electrically assisted turbocharger and continuing through the rear of the vehicle.

The package combines:

SOUL High-Flow Sport Cat Downpipe

with

SOUL 3.5-Inch Performance Rear Exhaust

This creates one integrated turbo-back exhaust system rather than simply replacing the rear muffler.

The factory exhaust averages approximately 2.75 inches in diameter. SOUL increases the system to 3.5 inches from the turbo back, providing substantially greater available flow capacity.

T-HYBRID / eTURBO ARCHITECTURE:

The 992.2 Carrera GTS uses Porsche's T-Hybrid powertrain with a single electrically assisted turbocharger.

A conventional large turbocharger and large-diameter exhaust system can introduce significant turbo lag because the exhaust system must move a greater volume of gas before sufficient turbine speed is achieved.

Porsche's electrically assisted turbo changes that equation.

The integrated electric motor dramatically accelerates turbocharger response, allowing the engine to take advantage of large exhaust-flow cross-sections without the lag normally associated with such an architecture.

SOUL's 3.5-inch Performance Exhaust is designed to complement that high-flow potential by removing much of the restriction downstream of the eTurbo.

FACTORY GPF RESTRICTION:

SOUL describes the factory GTS downpipe as one of the most restrictive exhaust components it has encountered on a performance vehicle.

After leaving the turbocharger, exhaust gases must pass through a very large GPF assembly and restrictive catalytic converter.

Despite the T-Hybrid powertrain's high available exhaust flow, this factory emissions assembly significantly limits how efficiently exhaust gases can leave the turbine.

SOUL removes the restrictive GPF architecture and replaces the factory catalyst with a much freer-flowing 300-cell performance catalytic converter.

300-CELL SPORT CATALYST:

The Performance Exhaust retains a catalytic converter rather than using a completely catless downpipe.

SOUL uses its own:

• 300-cell performance catalyst

• Custom-specified precious-metal coating

• Triple-metal-matrix catalyst core

The catalyst is designed to provide substantially more exhaust flow than the factory assembly while maintaining a catted exhaust configuration.

3D-PRINTED 316L TURBO INLET:

The downpipe inlet is produced using next-generation metal additive manufacturing.

SOUL 3D prints the inlet from 316L stainless steel, allowing the internal shape to be optimized specifically for the transition from the electrically assisted turbocharger into the performance catalytic converter.

This manufacturing method allows SOUL to create flow geometry that would be difficult to reproduce using conventional cut, bend, and weld fabrication.

FULL 3.5-INCH EXHAUST:

After the Sport Cat Downpipe, exhaust continues through a full 3.5-inch rear exhaust system.

Compared with the approximately 2.75-inch factory architecture, the increased diameter provides substantially greater cross-sectional flow area.

This helps support:

• Increased exhaust flow

• Reduced backpressure

• Improved turbocharger efficiency

• Greater performance potential

• Stronger response throughout the powerband

• Future higher-output engine configurations

NON-VALVED PERFORMANCE DESIGN:

The factory 992.2 Carrera GTS uses electronically controlled exhaust valves that progressively open and close depending on engine operating conditions.

Even under full throttle in Sport mode, Porsche's factory valve strategy does not necessarily leave the valves fully open.

The SOUL Performance Exhaust removes both the factory exhaust valves and rear muffling.

This means the exhaust operates through its unrestricted performance path continuously.

There is no quiet mode.

The system is therefore intended for customers who prioritize sound, flow, and performance over factory-style exhaust-volume control.

HELMHOLTZ ANTI-DRONE SYSTEM:

A full 3.5-inch non-valved exhaust can easily introduce undesirable low-frequency resonance if the system is not acoustically engineered.

SOUL identified inherent drone frequencies around approximately:

2,200–2,800 RPM

and incorporated a tuned Helmholtz chamber to target that range.

The chamber reduces the specific sound frequencies responsible for undesirable cabin resonance without substantially restricting the main exhaust path.

The result is an aggressive system with active cabin presence but relatively controlled highway cruising characteristics.

SOUND CHARACTER:

The Performance Exhaust is intentionally much more aggressive than the factory system.

Expect:

• Constant turbocharger and engine sound

• Significantly greater boost noise

• Stronger turbo spool and whistle

• A deep turbocharged flat-six growl

• Increased mechanical character

• Stronger exhaust note throughout the RPM range

• Noticeably increased sound during deceleration

• No factory valve intervention

• No quiet exhaust mode

• Minimal unwanted drone for a system of this volume

SOUL notes that the unequal-length factory exhaust manifolds naturally give the 992.2 GTS a tone that is less like the traditional high-pitched naturally aspirated GT3 flat-six and more reminiscent of the muscular growl of a classic 930 Turbo.

The Performance Exhaust is tuned to enhance that natural character rather than attempt to make the T-Hybrid engine sound like a GT3.

PERFORMANCE:

The increased exhaust diameter, removal of the restrictive factory GPF, freer-flowing 300-cell catalyst, and non-valved 3.5-inch rear system dramatically reduce exhaust restriction.

SOUL reports gains of:

More than +50 wheel horsepower

More than +40 lb-ft of torque

Importantly, these results were achieved with the factory ECU software.

SOUL reports that the increased efficiency produces better response and a noticeably stronger pull throughout the power curve, with the eTurbo allowing the gains to arrive almost immediately.

These are manufacturer-reported gains for the complete SOUL Performance Exhaust System.

FACTORY GPF / O2 SENSOR INTEGRATION:

Removing the factory GPF introduces significant diagnostic challenges because Porsche monitors particulate-filter behavior and exhaust pressure.

SOUL engineered provisions into the Performance Exhaust to reproduce the factory system's expected GPF pressure differentials while also accounting for oxygen-sensor behavior.

The goal is to help minimize the possibility of a check engine light on an otherwise stock, untuned vehicle.

This should be understood as an engineered CEL-mitigation strategy rather than an unconditional guarantee that a diagnostic fault can never occur.

PERFORMANCE EXHAUST VS. SPORT CAT DOWNPIPE:

Sport Cat Downpipe

• Replaces factory downpipe only

• Retains factory rear exhaust

• Retains factory electronic exhaust valves

• SOUL 300-cell catalyst

• Removes restrictive GPF

• Greater turbocharger sound

• Lower purchase price

• Can be combined later with another compatible rear exhaust

Performance Exhaust

• Complete turbo-back system

• Includes high-flow downpipe

• Includes full 3.5-inch rear exhaust

• Eliminates factory rear muffling

• Eliminates factory exhaust valves

• Maximum SOUL exhaust flow

• Significantly greater overall volume

• SOUL reports 50+ whp / 40+ lb-ft on factory software

PERFORMANCE EXHAUST VS. VALVED EXHAUST:

Performance Exhaust System

• Complete turbo-back system

• Sport Cat Downpipe included

• Full 3.5-inch rear exhaust

• Non-valved

• Maximum flow

• Aggressive sound at all times

• Best suited to customers prioritizing performance and constant exhaust character

Valved Exhaust System

• Rear exhaust only

• Retains factory downpipe unless upgraded separately

• Retains electronic valve control

• Allows reduced exhaust volume when desired

• Better suited to customers prioritizing daily-driving refinement

CHECK ENGINE LIGHT:

SOUL went to significant lengths to replicate the factory GPF pressure differentials and oxygen-sensor behavior.

This engineering is intended to help minimize the potential for a check engine light on otherwise untuned vehicles.

SOUL does not describe this as an unconditional no-CEL guarantee.

EMISSIONS NOTE:

The Performance Exhaust retains an aftermarket high-flow catalytic converter but eliminates the original Porsche GPF and replaces other factory emissions-related exhaust components.

Replacing or removing factory emissions equipment may not comply with regulations governing vehicles operated on public roads.

Customers are responsible for determining compliance with all applicable federal, state, local, and international regulations before installation or use.