Porsche 991.1 / 991.2 Turbo / Turbo S SOUL X-Pipe Exhaust

Product Description

The SOUL X-Pipe Exhaust is a direct bolt-on rear exhaust upgrade for the 2013–2019 Porsche 991.1 and 991.2 911 Turbo / Turbo S, designed for owners who want substantially more flat-six and turbocharger sound while retaining the factory catalytic-converter sections.

SOUL replaces the restrictive factory rear exhaust with a full 3-inch T304L stainless-steel X-pipe system featuring a proprietary exhaust-stream mixing chamber and four straight-through race resonators. The result is increased exhaust volume, stronger turbocharger presence, more pronounced pops and burbles on deceleration, and an OEM-plus character while maintaining the factory catalysts upstream.

The quad race resonators are specifically used to control undesirable cabin resonance without placing conventional restrictive mufflers in the primary exhaust path.

At approximately 16.45 lbs without tips, the SOUL X-Pipe is approximately 8.4 lbs / 3.8 kg lighter than the 24.85-lb factory rear exhaust components it replaces.

Owners may reuse the factory exhaust tips on most Turbo and Turbo S applications or select SOUL's Signature Satin GT2 Style or Signature Satin Straight Cut T316L stainless-steel tips.

FITMENT:

• Fits 2013–2016 Porsche 991.1 911 Turbo

• Fits 2013–2016 Porsche 991.1 911 Turbo S

• Fits 2017–2019 Porsche 991.2 911 Turbo

• Fits 2017–2019 Porsche 991.2 911 Turbo S

• Fits Coupe and Cabriolet applications where offered

• Compatible with factory catalytic-converter sections

• Compatible with SOUL Sport Catalytic Converters

• Compatible with SOUL Cat Bypass Pipes

• Factory exhaust tips may be reused on most applications

• Factory tips cannot be reused on the 991.2 Turbo S Exclusive Series

• Turbo S Exclusive Series vehicles must use compatible SOUL exhaust tips

DETAILS:

• Rear X-Pipe Exhaust System

• Retains the vehicle's existing catalytic-converter sections

• Full 3-inch exhaust architecture

• Proprietary X-pipe mixing chamber

• Designed to improve exhaust-stream blending

• Designed to reduce rear exhaust restriction

• Designed to support higher-output applications

• Four straight-through race resonators

• Full-metal resonator packing

• Engineered to minimize undesirable cabin drone

• Increased flat-six exhaust character

• Increased turbocharger sound

• Increased pops and burbles during deceleration where produced by the ECU calibration

• OEM-plus sound character

• Approximately 16.45 lbs / 7.5 kg without tips

• Factory rear exhaust components approximately 24.85 lbs / 11.3 kg without tips

• Saves approximately 8.4 lbs / 3.8 kg

• Approximately 34% lighter than the factory components being replaced

• Mandrel-bent T304L stainless steel

• 3-inch diameter tubing

• .065-inch wall thickness

• Laser-cut mounting brackets

• Optional tips manufactured from T316L stainless steel

• Mikalor Supra Heavy-Duty clamps included with SOUL tip configurations

• Direct bolt-on installation

• Installation instructions included

• Fixture-tested before shipment

• Modular design allows future catalyst-section upgrades

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

RETAINS THE FACTORY CATALYTIC CONVERTERS

Unlike SOUL's Competition and Sport X-Pipe systems, this X-Pipe replaces only the rear exhaust section.

The original catalyst assemblies remain installed.

This allows owners to improve:

• Exhaust volume

• Exhaust tone

• Turbocharger sound

• Rear exhaust flow

• Exhaust-system weight

without replacing the factory catalytic converters.

For an otherwise-stock car, this makes the X-Pipe the simplest of SOUL's major 991 Turbo exhaust-system upgrades.

FULL 3-INCH EXHAUST ARCHITECTURE

SOUL uses:

3-inch-diameter tubing

through the X-Pipe system.

The larger exhaust path was selected not only for sound but also to provide additional flow capacity for higher-output cars.

This makes the X-Pipe suitable for vehicles with:

• ECU tuning

• Increased boost

• Intake upgrades

• Intercooler upgrades

• SOUL Sport Catalytic Converters

• SOUL Cat Bypass Pipes

• Turbocharger upgrades

• Other supporting performance modifications

PROPRIETARY X-PIPE MIXING CHAMBER

SOUL developed a dedicated mixing chamber within the X-pipe rather than simply running two isolated exhaust pipes toward the rear of the car.

During development, SOUL analyzed the design in 3D CAD across multiple pressure and temperature conditions and observed a general increase in exhaust velocity downstream of the mixing chamber.

The design is intended to provide:

• Improved exhaust-stream blending

• Reduced backpressure

• Increased downstream exhaust velocity

• Higher-flow capability

• Smoother exhaust character

• Improved sound quality

QUAD RACE RESONATORS

A freer-flowing 3-inch exhaust can easily introduce undesirable low-frequency cabin resonance.

SOUL therefore incorporates:

Four straight-through race resonators

into the X-Pipe.

These use full-metal packing for durability at elevated exhaust temperatures.

The resonators are intended to reduce unwanted frequencies while maintaining a relatively unrestricted primary exhaust path.

This allows the system to provide substantially greater sound without simply becoming an unrefined straight-pipe rear exhaust.

OEM-PLUS SOUND

This X-Pipe is intended to be the more restrained rear-exhaust option within SOUL's 991 Turbo range.

SOUL describes the resulting character as OEM+.

Compared with the stock exhaust, expect:

• Increased cold-start presence

• Greater flat-six engine note

• Stronger turbocharger sound

• Increased exhaust volume under acceleration

• More audible turbine activity

• Increased pops and burbles on deceleration

• More high-RPM character

• Greater cabin involvement

At steady-state cruising speeds, the quad resonators are designed to keep undesirable drone under control.

TURBOCHARGER SOUND

Even with the original catalytic converters retained, reducing downstream muffling allows more turbocharger sound to reach the driver.

Expect increased:

• Turbo spool

• Turbine whistle

• Throttle-related sound

• Boost-related exhaust character

Customers seeking an even greater increase in turbo sound can later pair the X-Pipe with SOUL Sport Catalytic Converters or Cat Bypass Pipes.

DECELERATION POPS & BURBLES

The freer-flowing rear exhaust makes the engine's existing overrun behavior substantially easier to hear.

Expect more audible:

• Pops

• Crackles

• Burbling

• Shift-related exhaust events

The amount will depend on:

• 991.1 vs. 991.2 calibration

• Driving mode

• ECU software

• Catalyst configuration

• Other engine modifications

The exhaust itself does not create artificial combustion events.

RETAINS FACTORY CATALYST MONITORING

Because this X-Pipe leaves the factory catalytic converters and their associated emissions-monitoring architecture in place, it does not create the same catalyst-delete concerns as SOUL's Competition X-Pipe.

No ECU calibration is required simply to install the rear X-Pipe.

DasMotoring does not claim that any modification can guarantee the absence of diagnostic faults on every vehicle, but this product does not itself remove the catalysts.

8.4-LB WEIGHT REDUCTION

SOUL's current published weights are:

Factory Rear Exhaust Components:
approximately 24.85 lbs

SOUL X-Pipe Exhaust:
approximately 16.45 lbs

Weight Savings:
approximately 8.4 lbs / 3.8 kg

These measurements are stated without exhaust tips.

That represents approximately a:

34% reduction

in the weight of the rear exhaust components being replaced.

T304L STAINLESS CONSTRUCTION

The main exhaust system is manufactured from:

Mandrel-bent T304L stainless steel

with:

3-inch diameter tubing

and:

.065-inch wall thickness

This provides a balance of:

• High-temperature durability

• Corrosion resistance

• Structural strength

• Low mass

• Consistent internal geometry

• Long service life

FULL-METAL RESONATOR PACKING

SOUL's straight-through resonators use full-metal packing material.

This is particularly appropriate on a turbocharged vehicle because exhaust temperatures can remain elevated during extended high-load or track use.

The construction is intended to provide long-term acoustic performance without significantly obstructing exhaust flow.

LASER-CUT MOUNTING BRACKETS

SOUL uses laser-cut mounting brackets to maintain consistent exhaust positioning.

Each completed system is fixture-tested prior to shipment to verify:

• Mounting alignment

• X-pipe position

• Exhaust-tip positioning

• Chassis clearance

• Overall dimensional consistency

EXHAUST TIP OPTIONS

Three tip configurations are available.

Reuse OEM Tips

Retains the factory Porsche exhaust outlets for the most factory-like appearance.

Signature Satin GT2 Style Single Wall

A more aggressive motorsport-inspired outlet finished in SOUL's Signature Satin.

Signature Satin Straight Cut Single Wall

A clean straight-cut design for a simple performance appearance.

SOUL's current optional tips are manufactured from T316L stainless steel.

REUSE OEM TIPS

For most Turbo and Turbo S models, the factory tips can be transferred to the SOUL X-Pipe.

This provides:

• OEM exterior appearance

• Lowest purchase price

• No need to purchase additional tip assemblies

Price: $2,995.00

SIGNATURE SATIN GT2 STYLE TIPS

The GT2 Style tips provide a more aggressive visual treatment than the standard Turbo exhaust outlets.

Price: $3,690.00

SIGNATURE SATIN STRAIGHT CUT TIPS

The Straight Cut tips provide a clean, motorsport-inspired appearance.

Price: $3,690.00

TURBO S EXCLUSIVE SERIES NOTE

The 991.2 Turbo S Exclusive Series cannot reuse its original factory exhaust tips with the SOUL X-Pipe.

Exclusive Series customers must select:

• Signature Satin GT2 Style Single Wall

or

• Signature Satin Straight Cut Single Wall

Do not order the OEM-tip configuration for an Exclusive Series vehicle.

MODULAR EXHAUST ARCHITECTURE

One of the strongest advantages of the SOUL 991 Turbo exhaust family is its modularity.

An owner can initially install the rear X-Pipe while retaining the factory catalysts and later add:

• SOUL Sport Catalytic Converters

or

• SOUL Cat Bypass Pipes

without replacing the rear exhaust again.

This allows the exhaust to evolve with the vehicle.

X-PIPE + FACTORY CATALYSTS

This configuration provides the most conservative SOUL X-Pipe setup.

Factory Cats + SOUL X-Pipe

• Retains factory catalytic converters

• Increases rear exhaust flow

• Increases flat-six sound

• Increases turbo sound

• Saves approximately 8.4 lbs

• Retains a comparatively OEM-plus character

• No catalyst removal

This is particularly appropriate for an otherwise-stock or mildly modified street car.

X-PIPE + SOUL SPORT CATALYTIC CONVERTERS

Adding SOUL Sport Catalytic Converters converts the rear X-Pipe configuration into a substantially more comprehensive catted exhaust system.

Benefits include:

• Reduced catalyst restriction

• Increased turbocharger sound

• Increased overall exhaust volume

• Greater performance potential

• Retained catalytic converters

This effectively moves the vehicle toward the hardware configuration represented by SOUL's complete Sport X-Pipe system.

X-PIPE + SOUL CAT BYPASS PIPES

The X-Pipe can also be paired with SOUL Cat Bypass Pipes.

This produces a much more aggressive configuration with:

• No catalytic converters

• Significantly increased turbo sound

• Reduced post-turbo restriction

• Greater exhaust volume

• Additional weight reduction

• Greater emissions and diagnostic considerations

This effectively moves the vehicle toward SOUL's Competition X-Pipe hardware configuration.

X-PIPE VS. SPORT X-PIPE

SOUL X-Pipe Exhaust

• Starts at $2,995

• Rear exhaust only

• Retains existing catalysts

• 3-inch architecture

• Proprietary X-pipe

• Quad race resonators

• Saves approximately 8.4 lbs

• Lowest-cost X-pipe configuration

• OEM-plus sound character

SOUL Sport X-Pipe

• Starts at $6,295

• Includes high-flow catalytic converters

• 3-inch architecture

• Proprietary X-pipe

• Quad race resonators

• Saves approximately 14.4 lbs

• Greater turbocharger sound

• More comprehensive catted exhaust upgrade

X-PIPE VS. COMPETITION X-PIPE

SOUL X-Pipe Exhaust

• Starts at $2,995

• Retains factory catalysts

• Approximately 16.45 lbs without tips

• Approximately 8.4 lbs lighter than stock rear components

• More restrained OEM-plus sound

• Street-oriented starting point

SOUL Competition X-Pipe

• Starts at $3,995

• Completely catless

• Approximately 26 lbs as a complete catless system

• Approximately 19 lbs lighter than corresponding factory components

• Greater turbocharger sound

• Greater exhaust volume

• Greater emissions and diagnostic considerations

• Competition-oriented configuration

PERFORMANCE

SOUL designed the X-Pipe around improved exhaust flow and the ability to support increased engine output.

However, SOUL's current product page does not publish a controlled stock-rear-exhaust versus X-Pipe-only horsepower or torque test.

DasMotoring therefore does not advertise a specific numerical power increase from the rear X-Pipe alone.