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

Fabspeed Sport Catalytic Converters.
The Fabspeed Sport Catalytic Converters for Porsche 911 Carrera 992.2 Non-GTS models (2025 onwards) are a premium performance exhaust upgrade designed to improve exhaust gas flow, increase horsepower and torque, and enhance the distinctive sound of Porsche's twin-turbocharged flat-six engine.

Fits:

• Porsche 992.2 Carrera 2 3.0L 2025>>
• Porsche 992.2 Carrera 2S 3.0L 2025>>
• Porsche 992.2 Carrera T 3.0L 2025>>
• Porsche 992.2 Carrera 4S 3.0L 2025>>  

Engineered by Fabspeed Motorsport, these high-performance catalytic converters replace the restrictive factory catalytic converters with advanced German-manufactured HJS 200-cell HD sports catalysts. Their high-flow design reduces exhaust backpressure while retaining catalytic exhaust treatment functionality.

The original Porsche catalytic converters feature a 700-cell ceramic construction, whereas the Fabspeed system incorporates 200-cell trimetallic catalytic converter cores. This design allows exhaust gases to pass more freely through the system, helping improve turbocharger efficiency, engine responsiveness and acceleration.

Manufactured from premium T304L stainless steel, the system features CNC mandrel-bent pipework, precision-machined inlet flanges and hand TIG-welded construction. The HJS catalytic converter cores are protected by 321L stainless steel heat shielding, providing durability under demanding exhaust temperatures.

Fabspeed advertises performance improvements of up to 53 HP at the crankshaft and 93 lb-ft of torque, making this a performance-focused upgrade for the Porsche 992.2 Carrera platform. Actual results depend on vehicle specification and testing conditions.

In addition to improved exhaust flow, the sports catalytic converters produce a more pronounced exhaust note, allowing the character of the Porsche flat-six engine to become more noticeable during acceleration and spirited driving.

Designed as a direct bolt-on replacement, the Fabspeed Sport Catalytic Converters require no cutting or welding and can be removed to restore the original exhaust configuration if required.

Ideal for Porsche enthusiasts seeking improved engine performance, enhanced exhaust sound and premium construction, these Fabspeed Sport Catalytic Converters provide a high-quality alternative to the factory catalytic converter assemblies.

What This Product Does:
Catalytic converters are essential components of a vehicle's exhaust emissions control system. Their primary function is to reduce harmful pollutants produced during engine combustion before the exhaust gases leave the tailpipes.

As exhaust gases pass through the catalytic converter, the catalyst promotes chemical reactions that convert harmful pollutants, including carbon monoxide, unburned hydrocarbons and nitrogen oxides, into less harmful substances.

The Fabspeed Sport Catalytic Converters perform this emissions-treatment function while providing a less restrictive path for exhaust gases compared with the original factory converters.

Their main functions include:

• Reducing exhaust emissions: Catalytic converter cores help convert harmful exhaust pollutants into less harmful substances.
• Improving exhaust gas flow: High-flow 200-cell HJS catalysts reduce restriction compared with the factory 700-cell catalytic converters.
• Reducing exhaust backpressure: Less restrictive pipework helps exhaust gases move more efficiently through the system.
• Supporting turbocharger efficiency: Improved exhaust flow downstream of the turbochargers can support efficient turbocharger operation.
• Increasing horsepower: Reduced exhaust restriction can contribute to additional engine power, with Fabspeed advertising gains of up to 53 HP.
• Improving torque delivery: Enhanced exhaust flow can support stronger acceleration and increased torque.
• Enhancing throttle response: More efficient exhaust gas discharge helps support responsive engine operation.
• Improving exhaust sound: Produces a deeper, more pronounced sports exhaust note compared with the factory catalytic converters.
• Maintaining catalytic exhaust treatment: Retains functioning catalytic converter cores rather than replacing them with unrestricted bypass pipes.
• Supporting high-temperature durability: Premium stainless steel construction and heat shielding help withstand demanding exhaust operating conditions.

Symptoms Of Wear Or Failure:
Factory catalytic converters operate under extreme conditions, including high exhaust temperatures, repeated thermal cycling, vibration and exposure to exhaust contaminants.

Although designed for long service life, catalytic converters may eventually deteriorate due to overheating, contamination, physical damage or internal substrate failure.

Common symptoms of worn or failing catalytic converters include:

• Reduced engine performance: A blocked or restricted catalytic converter may increase exhaust backpressure, reducing engine power and responsiveness.
• Sluggish acceleration: Excessive exhaust restriction can make the engine feel less responsive, particularly under heavy acceleration.
• Engine management warning light: Reduced catalytic converter efficiency may trigger the check engine light and associated diagnostic fault codes.
• Catalyst efficiency fault codes: Diagnostic codes such as P0420 or P0430 may indicate below-threshold catalytic converter efficiency, although other faults can cause these codes.
• Rattling noises: A damaged or broken internal catalytic converter substrate may produce metallic rattling sounds from the exhaust system.
• Excessive exhaust heat: A severely restricted converter can cause abnormal temperature build-up within the exhaust system.
• Unusual exhaust odours: Poor catalytic converter performance may contribute to noticeable exhaust smells or increased pollutant emissions.
• Increased fuel consumption: Severe exhaust restriction or associated engine management faults may affect fuel efficiency.
• Failed emissions inspection: A deteriorated catalytic converter may no longer provide sufficient exhaust pollutant conversion.
• Visible exhaust damage: Cracked converter housings, damaged welds or corroded connections may allow exhaust gas leakage.
• Abnormal turbocharger response: Significant exhaust restriction may interfere with efficient exhaust gas discharge from the turbochargers.
• Overheating or substrate damage: Engine misfires, incorrect fuel mixtures or excessive exhaust temperatures can damage the internal catalyst material.

Why Replacement / Upgrading Matters:
Replacing the original catalytic converters with Fabspeed Sport Catalytic Converters provides an opportunity to improve exhaust flow, increase engine performance and enhance the driving experience of the Porsche 992.2 Carrera.

While conventional replacement catalytic converters restore the original exhaust emissions system, Fabspeed's high-flow HJS design is engineered to reduce exhaust restrictions while retaining catalytic conversion functionality.

The 200-cell trimetallic catalysts provide a more open exhaust flow path than the original factory 700-cell ceramic converters, helping the turbocharged engine operate with reduced downstream restriction.

Upgrading to Fabspeed Sport Catalytic Converters offers several advantages:

• Increased engine power: Fabspeed advertises horsepower improvements of up to 53 HP at the crankshaft.
• Improved torque delivery: Manufacturer-reported gains of up to 93 lb-ft can provide stronger acceleration and improved performance.
• Reduced exhaust restriction: High-flow 200-cell catalytic converters provide a less restrictive exhaust gas pathway.
• Improved turbocharger efficiency: Reduced downstream backpressure can help turbocharged engines operate more efficiently.
• Enhanced engine responsiveness: More efficient exhaust flow can contribute to improved throttle response.
• Sportier exhaust sound: Produces a more distinctive exhaust note that complements the Porsche flat-six engine.
• Premium HJS catalytic technology: German-manufactured trimetallic catalysts offer high-performance exhaust treatment.
• Durable stainless steel construction: T304L stainless steel provides excellent corrosion resistance and long-term durability.
• High-temperature protection: 321L stainless steel heat shielding helps protect the catalytic converter cores.
• Vehicle-specific engineering: Designed for Porsche 992.2 Carrera 3.0L non-GTS applications.
• Direct bolt-on installation: Replaces the original catalytic converter assemblies without cutting or welding.
• Reversible modification: Allows the original exhaust components to be reinstalled if required.
• Manufacturer-backed performance design: Fabspeed advertises the system as optimised to avoid catalyst-related check engine lights.
• Manufacturer warranty support: Covered by Fabspeed's Lifetime Warranty, subject to the applicable terms and conditions.

For Porsche owners seeking a significant exhaust performance upgrade while retaining catalytic converters, the Fabspeed system provides a performance-focused alternative to the original exhaust components.

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.

FSPOR9922SC

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 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
• 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 

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

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 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 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

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

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.

9M992254460CS

The product you are viewing cross references to these numbers

Ninemeister 9m Catted X-Pipe Centre Section

The Ninemeister 9m Catted X-Pipe Centre Section is a high-performance exhaust upgrade developed specifically for the Porsche 911 992.2 Turbo S.

Fits:

• Porsche 992.2 Turbo S 3.6L 2024>>       

Manufactured from SS304L stainless steel, this performance exhaust section is designed to improve exhaust gas flow, reduce back pressure and deliver a more engaging exhaust note.

Featuring high-flow 300-cell catalytic converters, the system combines improved exhaust performance with advanced emissions-control technology.

What Does It Do?

The X-pipe centre section improves exhaust gas flow by reducing restrictions within the exhaust system.

Its high-flow design helps reduce back pressure, supporting improved engine performance while producing a more distinctive exhaust sound.

Why Upgrade?

The factory exhaust is designed to balance performance, noise regulations and emissions requirements.

The Ninemeister system offers:

Reduced exhaust back pressure Improved exhaust gas flow Manufacturer-claimed 25hp+ power gains Approximately 7kg weight saving Enhanced sports exhaust note High-quality stainless steel construction

High-Performance Catalytic Converters

The system features Belgian-made 300-cell catalytic converters with Euro 6-standard purification coatings.

These incorporate a three-spiral metallic catalyst structure designed to improve durability under demanding exhaust conditions.

The catalytic coating uses precious metals including platinum, palladium and rhodium to support efficient exhaust gas conversion.

Porsche 992.2 Turbo S Performance Exhausts & Sports Catalysts

The Porsche 992.2 Turbo S benefits from a carefully engineered exhaust system that balances power delivery, sound and emissions.

The Ninemeister 9m Catted X-Pipe Centre Section provides a performance-focused alternative, combining SS304L stainless steel construction with high-flow catalytic converters.

Designed to reduce back pressure and improve exhaust sound, the system offers a claimed 25hp+ performance increase and approximately 7kg weight saving.

Design911 supplies Porsche 992 Turbo S performance exhaust systems, sports catalysts, stainless steel exhaust components and associated upgrades.

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

9M992254470

The product you are viewing cross references to these numbers