Porsche 992.1 GT3 / GT3 RS SOUL Race Exhaust System

Product Description

The SOUL Race Exhaust System is the most performance-focused complete exhaust configuration for the Porsche 992.1 GT3 and GT3 RS, replacing the restrictive factory headers, catalytic-converter assemblies, particulate-filter sections, factory rear muffler, and exhaust valves with a lightweight, high-flow system engineered around maximum power and sound.

Long-tube headers use optimized primary runners and CNC-machined merge collectors to improve exhaust flow before feeding interchangeable catted or catless sections. From there, exhaust travels through a full 3-inch rear exhaust system and X-pipe designed to blend the two cylinder banks for a smoother, higher-pitched motorsport exhaust note.

The modular architecture allows owners to switch between the Competition catless configuration and SOUL's 300-cell high-flow catalytic-converter configuration without replacing the complete exhaust system.

The result is a dramatic reduction in exhaust-system weight, significantly increased exhaust flow, measurable naturally aspirated power gains, and a high-pitched sound designed to evoke a Porsche Cup Car or RSR-style experience. SOUL Performance Products

FITMENT:

• Fits 2022–2024 Porsche 992.1 911 GT3

• Fits 2022–2024 Porsche 992.1 911 GT3 Touring

• Fits 2023–2024 Porsche 992.1 911 GT3 RS

• Compatible with PDK and 6-speed manual GT3 models where applicable

• Fits US-specification vehicles

• Fits European-specification vehicles, but SOUL states an appropriate OBD solution or ECU calibration is required to address resulting check engine lights

• Also fits the 2019 Porsche 991.2 Speedster

• 992 S/T is not included in SOUL's current published fitment for this particular product

• Does not fit Carrera, Turbo, Turbo S, or other non-GT3 exhaust architectures

• Does not use the 992.2 GT3-specific product listing

SOUL's current product page formally specifies all 992 GT3 / GT3 RS models within the applicable generation as well as the 991 Speedster. SOUL Performance Products

DETAILS:

• Complete race-oriented exhaust system

• Includes performance long-tube headers

• Optimized primary-runner geometry

• Bespoke CNC-machined merge collectors

• Billet 304L stainless steel head flanges and collectors

• Full 3-inch rear exhaust flow path

• Integrated X-pipe blends exhaust from both cylinder banks

• Designed for a smoother and higher-pitched exhaust note

• Available with SOUL-designed 300-cell high-flow catalytic converters

• Available in Competition catless configuration

• Modular catalyst sections can be interchanged later

• Eliminates the restrictive factory rear muffler assembly

• Eliminates the factory exhaust valves

• Includes dedicated electronic valve simulators

• Valve simulators prevent valve-actuator removal from causing the vehicle to enter its reduced 6,000 RPM rev-limiter mode

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

• TIG welded with full back-purging

• Water-jet-cut flanges manufactured to approximately ±0.003-inch tolerances

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

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

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

LONG-TUBE HEADERS:

The factory 992 GT3 exhaust manifolds must balance emissions requirements, production packaging, catalyst placement, cost, and noise regulations.

SOUL's Race Exhaust removes those compromises by replacing the original header and catalyst assemblies with a performance-focused long-tube design.

SOUL optimized the transition from the cylinder-head flange into the primary runners and uses smooth-radius bends leading into dedicated merge collectors.

Rather than using a conventional slip-fit collector, SOUL developed a bespoke billet collector designed from CAD and manufactured by CNC machining.

The design allows longer primary runners while eliminating several welded joints from the collector assembly, increasing both exhaust-flow potential and durability.

CNC-MACHINED MERGE COLLECTORS:

The merge collector is one of the most technically significant components of the Race Exhaust System.

SOUL uses billet 304L stainless steel head flanges and merge collectors precision machined on a 5-axis CNC machine.

The collector incorporates performance-oriented merge geometry and merge spikes to smoothly combine exhaust pulses from the individual cylinders.

The goal is to improve:

• Exhaust-gas velocity

• Cylinder-to-cylinder flow consistency

• Throttle response

• Midrange output

• High-RPM breathing

• Overall naturally aspirated engine efficiency

This architecture is particularly relevant to the GT3's 4.0-liter naturally aspirated engine, where exhaust tuning and collector design directly influence scavenging and high-RPM performance. SOUL Performance Products

FULL 3-INCH REAR EXHAUST:

After the interchangeable catalyst section, exhaust flows through a full 3-inch rear exhaust system.

The factory architecture uses large catalyst assemblies feeding an exceptionally heavy dual-entry rear muffler through a large factory connection point.

SOUL removes this architecture entirely and concentrates on maintaining exhaust flow from the headers through the rear of the vehicle.

The system is constructed from .065-inch-wall T304L stainless steel to provide the durability required for repeated high-temperature track use.

X-PIPE DESIGN:

After the catalyst or bypass sections, exhaust from both cylinder banks enters a dedicated X-pipe.

SOUL designed the crossover to minimize internal diameter reduction while maximizing communication between the two exhaust banks.

Blending the exhaust pulses produces a smoother, more continuous exhaust note and helps move the character away from two independent banks toward a higher-pitched motorsport-style wail.

The resulting sound is substantially more aggressive than the factory exhaust.

SOUND CHARACTER:

The SOUL Race Exhaust System sits at the extreme end of the 992 GT3 exhaust spectrum.

Expect:

• Dramatically increased exhaust volume

• Higher-pitched flat-six character

• Much stronger mechanical engine sound

• Aggressive high-RPM wail

• Increased exhaust presence throughout the rev range

• More immediate response to throttle inputs

• A smoother tone from the X-pipe crossover

• A Cup Car / RSR-inspired character at high RPM

SOUL specifically describes the Race Exhaust as being extreme for a street-driven vehicle.

The Competition catless configuration provides the greatest volume and most aggressive sound.

The 300-cell catted configuration reduces sound somewhat while retaining the fundamental character and high-flow design of the Race Exhaust. SOUL Performance Products

DYNO-PROVEN POWER:

SOUL had the Race Exhaust System tested by Hydra Motor Works on a Dynojet.

With the SOUL Race Exhaust System alone, testing produced peak gains of approximately:

+23 wheel horsepower

+19 lb-ft of torque

SOUL also reports strong gains through the midrange and near maximum engine speed.

When the Race Exhaust was subsequently paired with a Hydra Motor Works Stage 2 ECU calibration, SOUL reports peak gains of approximately:

+60 wheel horsepower

+26 lb-ft of torque

with maximum gains at portions of the power curve exceeding:

+60 wheel horsepower

+70 lb-ft of torque

The +23 whp / +19 lb-ft figures are the exhaust-only test results. The larger numbers represent the combined exhaust and ECU calibration rather than the exhaust alone. SOUL Performance Products

WEIGHT SAVINGS:

The factory exhaust components weigh approximately:

68.2 lbs / 30.9 kg

The complete Competition / Catless Race Exhaust weighs approximately:

42.9 lbs / 19.5 kg

Approximate weight savings:

25.3 lbs / 11.4 kg

The complete Catted Race Exhaust weighs approximately:

47.6 lbs / 21.6 kg

Approximate weight savings:

20.6 lbs / 9.3 kg

This is a significant reduction at the rear of the vehicle while simultaneously replacing the headers, catalyst assemblies, muffler, valves, and associated factory exhaust hardware. SOUL Performance Products

MODULAR CATALYST SECTIONS:

The Race Exhaust is designed so the catalyst section can be changed independently of the headers and rear exhaust.

Owners can therefore switch between:

Competition – No Catalytic Converters

• Maximum exhaust flow

• Minimum system weight

• Maximum exhaust volume

• Maximum motorsport character

• Approximately 42.9-lb complete system weight

300-Cell High-Flow Catalytic Converters

• Retains catalytic converters

• SOUL-designed 300-cell catalyst cores

• Custom-specified precious-metal catalyst coating

• Triple-metal-matrix core construction

• Reduced exhaust volume compared with the catless configuration

• Approximately 47.6-lb complete system weight

The modular architecture also allows replacement catalyst or catless sections to be purchased later without replacing the headers or rear X-pipe assembly. SOUL Performance Products

ELECTRONIC VALVE SIMULATORS:

The factory 992 GT3 uses electronically actuated exhaust valves.

These actuators cannot simply be unplugged or removed when installing a non-valved race exhaust.

SOUL states that removing the factory valve actuators without properly simulating their operation can trigger a check engine light and place the vehicle into a reduced rev limiter of approximately 6,000 RPM.

The Race Exhaust therefore includes dedicated valve simulators.

The simulators plug into the factory valve wiring and allow the original exhaust valves and actuators to be removed without creating the valve-related fault condition.

CHECK ENGINE LIGHT:

Both Race Exhaust configurations replace the original Porsche catalyst assemblies.

SOUL states that this product may trigger a check engine light due to removal of the factory catalytic converters.

European-specification vehicles require an appropriate OBD device or ECU calibration to address resulting diagnostic faults.

Customers should not assume that selecting the high-flow catted configuration guarantees factory-equivalent emissions-monitoring behavior.

EXHAUST TIP OPTIONS:

The Race Exhaust is available with two 4-inch single-wall exhaust-tip styles:

• 4" Slash Cut Single Wall

• 4" Straight Cut Single Wall

Each tip style is available in:

• Signature Satin

• Brushed

• Satin Black

The tip design does not change exhaust-system performance, allowing the customer to select the appearance that best matches the vehicle.

EMISSIONS / COMPETITION USE NOTE:

The SOUL Race Exhaust System replaces the factory emissions hardware and is not CARB certified.

SOUL identifies this system as intended for closed-course competition use only where required.

The Competition configuration completely removes the catalytic converters.

The high-flow catted configuration also replaces the original Porsche catalytic converters with aftermarket components.

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