Catalyst / Bypass

Fabspeed Sport Cat.

The Fabspeed Porsche 992.2 Carrera GTS Sport Cat is a high-flow catalytic-converter upgrade developed specifically for the 2025+ Porsche 992.2 Carrera GTS T-Hybrid.

Fits:

• Porsche 992.2 Carrera 2 GTS 3.6L 2024>>
• Porsche 992.2 Carrera 4 GTS 3.6L 2024>>  

Designed as a direct bolt-on replacement for the restrictive factory catalyst arrangement, the Fabspeed Sport Cat improves exhaust-gas flow while retaining catalytic exhaust treatment.

The system is engineered to increase performance, reduce weight and produce a stronger, more motorsport-inspired flat-six exhaust note without converting the vehicle to an uncatalysed exhaust setup.

Fabspeed currently publishes:

• +50 horsepower
• +40 lb-ft torque
• 12 lb weight reduction

For a mechanically healthy vehicle, this product is primarily a performance, sound and weight-reduction upgrade rather than a routine maintenance replacement.

What This Product Does:
The catalytic converter sits in the exhaust stream and treats harmful exhaust gases before they leave the vehicle.

A factory catalyst must balance:

• Emissions control
• Noise requirements
• Durability
• Packaging
• Exhaust flow

The Fabspeed Sport Cat is designed to retain catalytic exhaust treatment while allowing gases to move more freely through the exhaust system.

Its intended benefits include:

• Increased exhaust flow
• Reduced exhaust restriction
• Increased horsepower
• Increased torque
• Reduced exhaust-system weight
• More aggressive exhaust sound
• Improved performance character
• Retained catalytic exhaust treatment
• Direct bolt-on fitment

Symptoms Of Wear Or Failure:
Catalytic converters operate at extremely high temperatures and can deteriorate through age, contamination, impact or engine-related problems.

Possible symptoms include:

• Check Engine Light
• Catalyst-efficiency fault codes
• Reduced engine performance
• Poor high-RPM response
• Increased exhaust restriction
• Internal rattling
• Metallic noises from the catalyst
• Unusually high exhaust temperatures
• Sulphur-like exhaust smell
• Poor throttle response
• Exhaust flow feeling restricted
• Discolouration caused by excessive heat
• Cracks in the catalyst housing or welds
• Exhaust leakage around joints or flanges

A diagnostic inspection should be carried out before replacing a catalyst because oxygen-sensor, ignition, fuelling or engine-management faults can produce similar symptoms.

Why Replacement Matters:
A genuinely failed or restricted catalytic converter can affect:

• Engine performance
• Exhaust flow
• Exhaust temperatures
• Emissions performance
• Turbocharger operating conditions
• Engine-management operation

A severely damaged catalyst can create enough restriction to interfere with normal engine breathing.

Replacing a failed catalyst restores a clear exhaust path and proper catalytic treatment.

Where the factory catalyst is healthy, however, fitting the Fabspeed Sport Cat is primarily a performance upgrade rather than a necessary repair.

NOTE: In the United Kingdom, sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001. They are not MOT compliant and cannot be used on public roads. These components are intended solely for race and track use.

For vehicles manufactured before 1st March 2001, a non-type approved sports catalytic converter may be fitted, provided it offers comparable performance to the original and the vehicle continues to meet the applicable emissions standards for its age. The vehicle must still pass an MOT test.

If you are located outside the UK, please check your local laws and regulations to ensure compliance.

 

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR9922GTSSC

The product you are viewing cross references to these numbers

Fabspeed Sport Catalytic Converters With GT2RS Style Outlets + Muffler Adapter.

The Fabspeed Sport Catalytic Converters with GT2RS Style Outlets + Muffler Adapter are a high-performance exhaust upgrade for the Porsche 911 992 Carrera, designed to reduce exhaust restriction, improve turbo response and deliver a significantly more sporting exhaust character.

Fits:

• Porsche 992.1 Carrera 2 3.0L 2021-24
• Porsche 992.1 Carrera 4 3.0L 2021-24
• Porsche 992.1 Carrera 2 Cabriolet 3.0L 2021-24
• Porsche 992.1 Carrera 4 Cabriolet 3.0L 2021-24
• Porsche 992.2 Carrera 2 3.0L 2024>>  

The system replaces the restrictive factory catalytic converters with German HJS 200-CPSI high-flow catalytic converters and incorporates GT2RS-inspired direct exhaust outlets with muffler adapter. This configuration creates a freer-flowing path for exhaust gases after the turbochargers while retaining catalytic exhaust treatment.

Manufactured from CNC mandrel-bent 14–16 gauge T304L stainless steel, the system is engineered as a direct bolt-on installation with no cutting or welding required.

What This Product Does:

• Replaces the factory catalytic-converter assemblies.
• Replaces the restrictive original 800-cell catalysts with HJS 200-CPSI units.
• Reduces exhaust backpressure.
• Allows exhaust gases to leave the turbochargers more efficiently.
• Helps improve turbocharger response.
• Supports increased horsepower and torque.
• Creates a more aggressive sports-car exhaust note.
• Increases audible turbocharger sound.
• Uses GT2RS-inspired direct exhaust outlets.
• Retains catalytic exhaust treatment.
• Reduces exhaust-system weight.
• Provides a modular design that can be converted back to a muffled configuration.
• Retains compatibility with the factory muffler using optional adapter pipes.
• Can also be configured with Fabspeed's Valvetronic exhaust.
• Provides a bolt-on installation without cutting or welding.

Fabspeed's HJS catalysts use a much more open internal structure than the original 800-cell units, helping the turbocharged 992 engine move exhaust gases more efficiently.

Symptoms Of Wear Or Failure:
The Fabspeed system is primarily a performance upgrade, but replacement may also be appropriate when the original catalytic converters have deteriorated.

Possible symptoms of a failing or restricted catalyst include:

• Reduced engine power.
• Sluggish acceleration.
• Increased turbo lag.
• Poor throttle response.
• Engine feeling restricted at higher RPM.
• Difficulty producing normal power under heavy load.
• Check engine warning light.
• Catalyst-efficiency fault codes.
• Rattling or metallic noises from inside a catalytic converter.
• Excessive heat from the catalyst housing.
• Strong or unusual exhaust odours.
• Increased emissions.
• Failed emissions testing.
• Exhaust leaks around joints or flanges.
• Visible damage to the catalyst housing.
• Poor fuel economy.
• Abnormally high exhaust backpressure.

A partially blocked catalyst may be relatively difficult to notice during light driving but become increasingly restrictive as exhaust-gas volume rises under acceleration.

Why Replacement Matters:
Catalytic converters sit directly downstream of the turbochargers and therefore have a significant influence on exhaust flow.

If the internal substrate becomes damaged, contaminated, melted or partially blocked, exhaust gases cannot pass through efficiently.

This increases backpressure and can result in:

• Reduced engine performance.
• Slower turbo response.
• Increased exhaust temperatures.
• Poor high-RPM performance.
• Increased load on the turbocharged exhaust system.
• Engine-management faults.
• Reduced emissions-control effectiveness.

Replacing a damaged or restrictive catalyst restores a clear exhaust path and proper catalytic function.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR992SCGT2WC

The product you are viewing cross references to these numbers

Fabspeed Sport Catalytic Converters With Muffler Adapter Only. 

The Fabspeed Sport Catalytic Converters With Muffler Adapter Only are a high-performance exhaust upgrade for the Porsche 911 992 Carrera, designed to reduce exhaust restriction, improve turbo response and deliver a significantly more sporting exhaust character.

Fits:

• Porsche 992.1 Carrera 2 3.0L 2021-24
• Porsche 992.1 Carrera 4 3.0L 2021-24
• Porsche 992.1 Carrera 2 Cabriolet 3.0L 2021-24
• Porsche 992.1 Carrera 4 Cabriolet 3.0L 2021-24
• Porsche 992.2 Carrera 2 3.0L 2024>>  

The system replaces the restrictive factory catalytic converters with German HJS 200-CPSI high-flow catalytic converters. This configuration creates a freer-flowing path for exhaust gases after the turbochargers while retaining catalytic exhaust treatment.

Fabspeed's modular design also provides flexibility. The adapter pipes, allow the sport catalysts to be used with the factory rear muffler or Fabspeed Valvetronic exhaust if a quieter configuration is preferred.

Manufactured from CNC mandrel-bent 14–16 gauge T304L stainless steel, the system is engineered as a direct bolt-on installation with no cutting or welding required.

What This Product Does:

• Replaces the factory catalytic-converter assemblies.
• Replaces the restrictive original 800-cell catalysts with HJS 200-CPSI units.
• Reduces exhaust backpressure.
• Allows exhaust gases to leave the turbochargers more efficiently.
• Helps improve turbocharger response.
• Supports increased horsepower and torque.
• Creates a more aggressive sports-car exhaust note.
• Increases audible turbocharger sound.
• Retains catalytic exhaust treatment.
• Reduces exhaust-system weight.
• Provides a modular design that can be converted back to a muffled configuration.
• Retains compatibility with the factory muffler using optional adapter pipes.
• Can also be configured with Fabspeed's Valvetronic exhaust.
• Provides a bolt-on installation without cutting or welding.

Fabspeed's HJS catalysts use a much more open internal structure than the original 800-cell units, helping the turbocharged 992 engine move exhaust gases more efficiently.

Symptoms Of Wear Or Failure:
The Fabspeed system is primarily a performance upgrade, but replacement may also be appropriate when the original catalytic converters have deteriorated.

Possible symptoms of a failing or restricted catalyst include:

• Reduced engine power.
• Sluggish acceleration.
• Increased turbo lag.
• Poor throttle response.
• Engine feeling restricted at higher RPM.
• Difficulty producing normal power under heavy load.
• Check engine warning light.
• Catalyst-efficiency fault codes.
• Rattling or metallic noises from inside a catalytic converter.
• Excessive heat from the catalyst housing.
• Strong or unusual exhaust odours.
• Increased emissions.
• Failed emissions testing.
• Exhaust leaks around joints or flanges.
• Visible damage to the catalyst housing.
• Poor fuel economy.
• Abnormally high exhaust backpressure.

A partially blocked catalyst may be relatively difficult to notice during light driving but become increasingly restrictive as exhaust-gas volume rises under acceleration.

Why Replacement Matters:
Catalytic converters sit directly downstream of the turbochargers and therefore have a significant influence on exhaust flow.

If the internal substrate becomes damaged, contaminated, melted or partially blocked, exhaust gases cannot pass through efficiently.

This increases backpressure and can result in:

• Reduced engine performance.
• Slower turbo response.
• Increased exhaust temperatures.
• Poor high-RPM performance.
• Increased load on the turbocharged exhaust system.
• Engine-management faults.
• Reduced emissions-control effectiveness.

Replacing a damaged or restrictive catalyst restores a clear exhaust path and proper catalytic function.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR992SCGT2C

The product you are viewing cross references to these numbers

SOUL Sport Cat Downpipe for Porsche 992.2 Carrera GTS

Open up more sound on your 992.2 GTS with the SOUL Sport Cat Downpipe. No CEL, No Tune, No OBD Killer required. Just bolt on and go!

•  Fits ALL 992.2 Porsche 911 Carrera GTS Models (2025+) worldwide
•  Weighs 10.65 lbs less than factory exhaust (16.75 lbs vs 27.4 lbs)
•  No CEL – No OBD Killer Required
•  Designed and built in-house at our Willow Grove, PA facility completely out of stainless steel.
•  All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use

SOUL 992.2 GTS Sport Cat Downpipe – Unleash the True Sound of Your Porsche 911 GTS
 
Porsche set a new benchmark with the 992.2 Carrera GTS - the first road-legal 911 to feature a hybrid-assisted powertrain. Unlike recent 911 models, the GTS is equipped with a single large turbocharger, instead of two smaller turbos. However, strict European emissions and sound regulations required Porsche to fit the car with an oversized muffler and restrictive catalytic converters.

The result? A muted flat-six soundtrack and a loss of the thrilling big-turbo character that true enthusiasts expect. The factory system holds back both performance and emotion, leaving drivers wanting more from their 992.2 GTS experience.

The SOUL 992.2 GTS Sport Cat Downpipe transforms your driving experience by unlocking the raw, turbocharged voice of the 992.2 Carrera GTS. Featuring a high-flow sport catalytic converter, this system dramatically reduces backpressure while maintaining emissions compliance and everyday drivability. With precision engineering that integrates seamlessly with Porsche’s factory particulate monitoring system, you can enjoy exhilarating sound and performance—without check engine lights or the need for OBD blockers.

Whether carving backroads, hitting the track, or commuting daily, the SOUL Sport Cat Downpipe delivers the sound, power, and character your GTS deserves.  

Key Benefits:
•  Frees up the authentic flat-six and single big turbo sound, reminiscent of the legendary Porsche 930 Turbo
•  High-flow sport catalytic converter reduces backpressure for improved performance
•  Retains factory drivability with civilized sound when valves are closed
•  No check engine lights – engineered to work with factory monitoring system (no OBD blockers needed)
•  Over 10 pounds lighter than the restrictive OEM downpipe assembly
•  Enhances the personality of your 992.2 GTS while keeping it comfortable for daily use

Take your Porsche 992.2 Carrera GTS to the next level with the SOUL 992.2 GTS Sport Cat Downpipe —where performance, sound, and drivability meet.

Construction: The 992.2 Carrera GTS is the most advanced 911 GTS ever—and our SOUL Sport Cat Downpipe is engineered to match. Using next-generation metal 3D printing technology, we’ve created precision components that maximize flow, durability, and performance. Every system is proudly handcrafted in the USA, built from mandrel-bent, thick-wall .065″ T304L stainless steel for exceptional strength and reliability.

Back-purged TIG welding with ARCAL™ Prime argon gas ensures maximum weld penetration, strength, and long-term durability under extreme conditions. Each water jet–cut flange is manufactured to ISO 9001:2015 standards with ultra-tight tolerances of +/-0.003 inches, guaranteeing exact alignment.

Bolt On and Go: The 992.2 GTS Sport Cat Downpipe is built and tested in a thick gauge aluminum fixture to prevent warping and to ensure perfect fitment. Every component undergoes rigorous quality control and is fixture-tested to guarantee precise fitment. To ensure your order arrives safely, all parts are carefully foam-packed and protected in transit, so you receive your new system in perfect condition and ready to install. New high-grade hardware is included for the bracketry.
 
Lifetime Warranty: You own a 992.2 GTS so of course you are going to want to take it to the racetrack. Especially once you hear how good it sounds with our GTS Sport Cat Downpipe. That is why our system is backed by a Lifetime Warranty for both street and track use! And our dedicated support team is always ready to answer questions you may have and provide quick solutions in the unlikely event that you should experience an issue. We are here to ensure you enjoy unmatched reliability and peace of mind with every mile.
  
Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

POR.9922GTS.SCC

The product you are viewing cross references to these numbers

Decatted Heat-Shielded Downpipe

Developed specifically for the Porsche 911 992.2 Carrera GTS, the 9M Decatted Heat-Shielded Downpipe is a direct bolt-on performance exhaust upgrade designed to reduce weight, improve exhaust flow and release more of the character of the flat-six engine.

Fits:

• Porsche 992.2 Carrera 2 GTS 3.6L 2024>>
• Porsche 992.2 Carrera 4 GTS 3.6L 2024>>

Diagram Ref No 7

Available in stainless steel or lightweight titanium, the downpipe weighs approximately 9kg less than the factory component while retaining a straightforward bolt-on installation with no cutting or welding required.

Designed to fit all worldwide Porsche 911 992.2 Carrera GTS models from 2025 onwards.

What Does the Downpipe Do?

The downpipe carries hot exhaust gases away from the engine and into the remaining exhaust system.

The original component incorporates emissions-control hardware that creates a restriction within the exhaust path. The 9M decatted design removes this restriction, allowing exhaust gases to flow more freely through the system.

The result is a more performance-focused exhaust configuration with a stronger, more natural flat-six exhaust note.

Why Upgrade?

For owners looking for a more engaging exhaust sound and reduced vehicle weight, the 9M downpipe provides several advantages over the factory component.

The less restrictive design allows the engine to expel exhaust gases more freely, while removing approximately 9kg compared with the factory assembly provides a worthwhile weight saving.

The system has also been developed to deliver a stronger flat-six exhaust note without introducing unwanted drone or poor resonance.

Key benefits include:

• Approximately 9kg lighter than the factory component
• Less restrictive decatted exhaust path
• Improved exhaust gas flow
• More pronounced flat-six exhaust sound
• Designed to avoid unwanted drone and poor resonance
• Heat-shielded construction
• Stainless steel or titanium options
• Direct bolt-on installation
• No cutting or welding required

Heat-Shielded Construction

Exhaust downpipes operate at extremely high temperatures, particularly during sustained performance driving.

The heat-shielded construction helps manage radiant exhaust heat around the downpipe and surrounding components, making thermal management an important part of the design rather than simply reducing restriction.

Stainless Steel or Titanium

The 9M downpipe is available in two material options.

Stainless steel provides excellent durability, corrosion resistance and long-term performance, making it an excellent choice for both road and performance use.

Titanium provides a more exotic lightweight alternative for owners looking to maximise weight reduction and use premium motorsport-inspired materials.

Bolt-On Installation

The downpipe has been engineered as a bolt-on replacement for the factory component.

No cutting or welding is required, making installation cleaner and avoiding permanent modification of the exhaust system during fitment.

Important Road Use Information

This is a decatted performance component and removes emissions-control equipment from the exhaust system. As a result, it may not comply with road vehicle emissions regulations, inspection requirements or type approval rules in some countries.

Customers should check local regulations before installation. It may be intended for motorsport, competition or other permitted off-road applications where local legislation requires catalytic converters to remain fitted for road use.

Downpipe & Performance Exhaust Upgrades

Upgrading the downpipe is an effective way to reduce exhaust restriction, increase the character of the flat-six exhaust note and remove weight from the Porsche 911 992.2 Carrera GTS.

The 9M decatted downpipe combines a freer-flowing exhaust path with heat-shielded construction and a substantial reduction in weight compared with the original component. With stainless steel and titanium versions available, owners can choose between a durable performance upgrade or a more weight-focused premium solution.

For Porsche 992.2 Carrera GTS owners looking for a more engaging exhaust experience, reduced weight and straightforward bolt-on installation, the 9M downpipe provides a purpose-designed upgrade without requiring cutting or welding.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9M992254460

The product you are viewing cross references to these numbers

Sports Catted Heat-Shielded Downpipe 

Developed specifically for the Porsche 911 992.2 Carrera GTS, the 9M Sports Catted Heat-Shielded Downpipe provides a less restrictive alternative to the factory exhaust component while retaining a sports catalytic converter.

Fits:

• Porsche 992.2 Carrera 2 GTS 3.6L 2024>>
• Porsche 992.2 Carrera 4 GTS 3.6L 2024>>

Diagram Ref No 7

Approximately 5kg lighter than the factory part, it combines improved exhaust flow with reduced weight and a more pronounced flat-six exhaust note. The system is designed to operate without triggering an engine management light, with no OBD blocker required.

Available in stainless steel or lightweight titanium and designed as a direct bolt-on installation with no cutting or welding required.

Fits all Porsche 911 992.2 Carrera GTS models from 2025 onwards worldwide.

What Does the Sports Catted Downpipe Do?

The downpipe carries hot exhaust gases away from the engine and into the remainder of the exhaust system.

Factory downpipes must balance emissions control, refinement and production requirements, which can restrict exhaust flow. The 9M sports catted design uses a more performance-focused exhaust path while retaining catalytic converter functionality.

This helps improve exhaust flow while providing a more engaging exhaust note than the standard system.

Why Upgrade?

The 9M Sports Catted Downpipe is designed for owners who want improved exhaust sound, reduced weight and freer exhaust flow without moving to a fully decatted setup.

Compared with the factory component, it offers an approximate 5kg weight saving while retaining a sports catalyst. The exhaust note is also enhanced to bring out more of the flat-six character without introducing unwanted drone or poor resonance.

Another important advantage is compatibility with the vehicle's engine management system. The downpipe is designed to operate without illuminating the engine management light, meaning an additional OBD blocker is not required.

Sports Catalyst Design

Unlike the 9M decatted version, this downpipe retains a sports catalytic converter.

This provides a useful middle ground for owners looking for a freer-flowing performance exhaust while retaining catalytic exhaust treatment.

Heat-Shielded Construction

Downpipes operate at extremely high temperatures, making thermal management particularly important in the tightly packaged engine bay of a modern Porsche 911.

The integrated heat shielding helps control radiant heat around the exhaust system and nearby components while maintaining the benefits of the performance downpipe design.

Stainless Steel or Titanium

The 9M Sports Catted Downpipe is available in two material options.

Stainless steel provides excellent durability, corrosion resistance and long-term performance, making it well suited to regular road and performance use.

Titanium offers a premium, lightweight alternative for owners looking to further optimise their performance exhaust system with motorsport-inspired materials.

Direct Bolt-On Installation

The downpipe is engineered as a direct bolt-on replacement for the original component.

No cutting or welding is required, simplifying installation and avoiding the fabrication work associated with universal or modified exhaust components.

Important Road Use Information

Although this version retains a sports catalytic converter, emissions and road-use regulations vary between countries and regions. Fitment of an aftermarket sports catalyst does not automatically guarantee compliance with local emissions testing, type approval or road vehicle regulations.

Customers should confirm local requirements before installation.

Sports Cat Downpipes & Exhaust Upgrades

A sports catted downpipe provides an effective compromise for Porsche 992.2 Carrera GTS owners looking for improved exhaust flow and a more engaging flat-six sound while retaining a catalytic converter.

The 9M system combines a sports catalyst with heat-shielded construction, direct bolt-on installation and an approximate 5kg weight reduction compared with the factory component.

With stainless steel and titanium options available, it is an ideal upgrade for owners looking to improve the sound and performance-focused character of their Porsche 911 992.2 Carrera GTS without choosing a fully decatted exhaust configuration.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9M992254460C

The product you are viewing cross references to these numbers