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Porsche Sports Exhaust Systems for Classic and Modern Models
Upgrade your Porsche exhaust system with high-quality Porsche sports exhaust systems from Design911. Our range includes everything from sport silencers and valved exhaust systems to manifolds and headers, catalytic converters, and complete exhaust packages. Each component is selected for precise fitment, durability, and engineering accuracy across classic and modern Porsche models.
We supply both Genuine Porsche parts and OEM-approved components, alongside performance upgrades such as Akrapovic exhaust systems. From OEM-style replacements to performance-focused upgrades, our range supports all Porsche models and driving styles.
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 GT3
Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 7)
2 x Cats to Muffler Clamps (Diagram Ref 29)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 22)
*Click on the image to see a large parts diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.GT3.1T
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 GT3
Kit Includes:
2 x Header Gaskets (Diagram Ref 3)
2 x Header to Cat Gaskets (Diagram Ref 7)
2 x Cats to Muffler Clamps (Diagram Ref 29)
2 x Muffler to Tail Pipe Clamps (Diagram Ref 22)
*Click on the image to see a large parts diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.GT3.1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Contains manifold to head studs, gaskets and manifold to turbo gasket and lock nuts.
Bolts and nuts are made out of Titanium. Gaskets are OEM.
Fits:
Porsche 996 GT3 1999-2005
This kit is comprised of the following items:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Fits:
Porsche 996 C2 / C4 3.4L 1998-2001 (96.01 / 96.02 / 96.04)
Porsche 996 GT3 1999-2005 (96.76 / 96.79)
Porsche 996 C2 / C4 / C4S 3.6L 2001-05 (M96.03)
Porsche 997.1 C2 / C4 3.6L 2004-08 (M96.05)
Porsche 997.1 C2S / C4S 3.8L 2004-08 (M97.01)
Diagram Ref no 23 (LEFT) or 28 (RIGHT).
Crafted from lightweight, corrosion-resistant titanium, it offers superior resistance to heat and road conditions compared to standard steel brackets—ideal for both daily driving and performance applications. Its universal design ensures compatibility across all Porsche 996 and 997 models (excluding Turbo variants), providing a reliable and precise fit without modification.
This Rohler bracket replaces multiple genuine Porsche part numbers, simplifying sourcing while maintaining OEM-level fitment and function.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9961112XXXXKIT.2
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Fits:
Porsche 996 C2 / C4 3.4L 1998-2001 (96.01 / 96.02 / 96.04)
Porsche 996 GT3 1999-2005 (96.76 / 96.79)
Porsche 996 C2 / C4 / C4S 3.6L 2001-05 (M96.03)
Porsche 997.1 C2 / C4 3.6L 2004-08 (M96.05)
Porsche 997.1 C2S / C4S 3.8L 2004-08 (M97.01)
Diagram Ref no 23 (LEFT) or 28 (RIGHT).
Crafted from lightweight, corrosion-resistant titanium, it offers superior resistance to heat and road conditions compared to standard steel brackets—ideal for both daily driving and performance applications. Its universal design ensures compatibility across all Porsche 996 and 997 models (excluding Turbo variants), providing a reliable and precise fit without modification.
This Rohler bracket replaces multiple genuine Porsche part numbers, simplifying sourcing while maintaining OEM-level fitment and function.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9961112XXXXKIT
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
.jpg?width=197 "Lambda oxygen sensor kit after catalytic converter. Porsche 996 / 997 / GT3 - 99660617801, 99660617802, 99660617800 - EX.029.014")
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Kit includes 2 x Lambda Oxygen Sensors (after catalytic converter)
Fits:
Porsche 996 Carrera 2 / Carrera 4 - 2002 to 2005
*Cars with M661 stricter emission control concept
Porsche 996 GT3 MKII 2004 to 2005
Porsche 997.1 Carrera 2 / Carrera 4 - 2005
Porsche 997.1 Carrera 2S / Carrera 4S - 2005
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Drivability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Diagram ref no 30
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LAMBDAKIT5
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Kit includes 2 x Lambda Oxygen Sensors (after catalytic converter)
Fits:
Porsche 996 Carrera 2 / Carrera 4 - 2002 to 2005
*Cars with M661 stricter emission control concept
Porsche 996 GT3 MKII 2004 to 2005
Porsche 997.1 Carrera 2 / Carrera 4 - 2005
Porsche 997.1 Carrera 2S / Carrera 4S - 2005
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Drivability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Diagram ref no 30
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LAMBDAKIT6
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Kit includes 4 x Lambda Oxygen Sensors (2 x before and 2 x after catalytic converter)
Fits:
Porsche 996 Carrera 2 / Carrera 4 - 2002 to 2005
*Cars with M661 stricter emission control concept
Porsche 996 GT3 MKII - 2004 to 2005
Porsche 997.1 Carrera 2 / Carrera 4 - 2005
Porsche 997.1 Carrera 2S / Carrera 4S - 2005
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Drivability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Diagram ref no 30 and 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LAMBDAKIT1
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Kit includes 4 x Lambda Oxygen Sensors (2 x before and 2 x after catalytic converter)
Fits:
Porsche 996 Carrera 2 / Carrera 4 - 2002 to 2005
*Cars with M661 stricter emission control concept
Porsche 996 GT3 MKII - 2004 to 2005
Porsche 997.1 Carrera 2 / Carrera 4 - 2005
Porsche 997.1 Carrera 2S / Carrera 4S - 2005
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Drivability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Diagram ref no 30 and 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LAMBDAKIT2
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Kit includes 2 x Lambda Oxygen Sensors (before catalytic converter)
Fits:
Porsche 996 Carrera 2 / Carrera 4 - 2002 to 2005
*Cars with M661 stricter emission control concept
Porsche 996 GT3 MKII - 2004 to 2005
Porsche 997.1 Carrera 2 / Carrera 4 - 2005
Porsche 997.1 Carrera 2S / Carrera 4S - 2005
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Drivability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Diagram ref no 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LAMBDAKIT3
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
Kit includes 2 x Lambda Oxygen Sensors (before catalytic converter)
Fits:
Porsche 996 Carrera 2 / Carrera 4 - 2002 to 2005
*Cars with M661 stricter emission control concept
Porsche 996 GT3 MKII - 2004 to 2005
Porsche 997.1 Carrera 2 / Carrera 4 - 2005
Porsche 997.1 Carrera 2S / Carrera 4S - 2005
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
Drivability problems, such as engine surging or hesitation.
High hydrocarbon emissions, failing an emissions inspection.
The engine warning light may be on or service flag displayed.
The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
Test and/or replace every 30,000 miles.
Perform periodic emission checks.
Watch for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Diagram ref no 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LAMBDAKIT4
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 Carrera 3.4L-3.6L 1998-05
Porsche 996 GT3 3.6 2004-05
Porsche 996 GT3 3.6 1999-01
Also Fits Catalytic Converter Bypass / Sports kits
99611196260S, 996PO96260S and 996PO96270S.
Click 'Zoom in' for large parts diagram.
Diagram ref no 7, 8, 13, 29 and 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.1.5
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 Carrera 3.4L-3.6L 1998-05
Porsche 996 GT3 3.6 2004-05
Porsche 996 GT3 3.4 1999-01
Kit included:
2x 99611122002 Pipe Connector, 55.5x75mm
2x 99611110800 Clamp, Ø70mm
2x 90037818301 Bolt, M8x1.25x140mm
2x 90037810501 Bolt, M8x1.25x70mm
12x 90038000501 Lock nut, M8x1.25mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.1.6
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 Carrera 3.4L-3.6L 1998-05
Porsche 996 GT3 3.6 2004-05
Porsche 996 GT3 3.6 1999-01
Also Fits Catalytic Converter Bypass / Sports kits
99611196260S, 996PO96260S and 996PO96270S.
Click 'Zoom in' for large parts diagram.
Diagram ref no 7, 8, 13, 29 and 37
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.1.5T
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 Carrera 3.4L-3.6L 1998-05
Porsche 996 GT3 3.6 2004-05
Porsche 996 GT3 3.4 1999-01
Kit included:
2x 99611122002 Pipe Connector, 55.5x75mm
2x 99611110800 Clamp, Ø70mm
2x 90037818301 Bolt, M8x1.25x140mm
2x 90037810501 Bolt, M8x1.25x70mm
12x 90038000501 Lock nut, M8x1.25mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHFITTING.996.1.6T
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Fits:
Porsche 996 GT3
2ND ARY CATALYTIC BYPASS PIPES
More power and sportscar sound
More power on 996 GT3 +12HP
more sports car sound
Saves 30lbs 15 KG from rear of your 996.
Not UK MOT appoved
*A re-map to the ECU may require when fitting these cats.
Please note: These sport cats will make your car sound louder than with stock cats. If you have ,or intend to install sport silencers, you may find the car is a bit loo loud. We recommend to use one sport exhaust component if you are concerned about decibel levels.
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.
99611112108
The product you are viewing cross references to these numbers
-
oil pump 996 GT3-1 M96.76 2000-01 and 996 GT3-1/GT3 RS M96.79 2004-05 104-00
-
exhaust system 996 GT3-1 M96.76 2000-01 and 996 GT3-1/GT3 RS M96.79 2004-05 202-00
-
brake master cylinder, brake booster, pre-charge pump 996 GT3-1 1999-05 604-00
-
pedals 996 GT3-1 1999-05 702-00
-
battery, power distributor, starter, generator, battery main switch for 996 GT3-1 1999-05 902-05
Porsche Sports Exhaust Systems, Performance Exhausts & Replacements
At Design911, we are renowned worldwide as specialists in Porsche sports exhausts and performance exhaust systems. We supply an extensive range of exhausts designed to enhance sound, performance, and styling - from stainless-steel replacements to high-end motorsport-grade systems.
With thousands of options available, we can provide the perfect exhaust solution for any Porsche model, whether you’re looking for a subtle sound upgrade, maximum horsepower gains, or a show-stopping aesthetic finish.
Leading Porsche Exhaust Brands
We work closely with the world’s most
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- Akrapovic Exhausts – premium titanium and carbon-fibre systems with extensive R&D for maximum power and zero cabin drone
- Dansk Exhausts – OEM-style Porsche replacements with proven quality and fit
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- Fabspeed Exhausts – high-performance upgrades with a strong motorsport pedigree
- Remus Exhausts – sport exhausts with aggressive sound and performance gains
- Milltek Exhausts – precision-engineered stainless steel systems for balanced power and tone
- Supersprint Exhausts – European-crafted performance systems, proven on road and track
Why Upgrade Your Porsche Exhaust?
Upgrading your exhaust system can transform
your Porsche by:
- Improving Sound – from refined sport tones to aggressive track-ready notes
- Boosting Performance – freeing airflow with sports catalytic converters (CATS), freer-flowing headers, and optimised back boxes
- Enhancing Style – with tailpipe upgrades in polished steel, carbon, or titanium finishes
- Weight Reduction – premium titanium systems reduce mass for improved handling
- Personalisation – match the sound and performance level to your driving style and needs
Choosing the Right Exhaust System
Porsche’s OEM systems balance performance with comfort and global regulations, which means there’s room for improvement. Your choice depends on your goals:
- Sportier Sound – start with back box replacements, where most sound deadening occurs
- Extra Power –
combine back boxes with sports catalytic converters (CATS) for
improved flow and horsepower
- Maximum Performance – upgrade to equal-length headers for smoother gas flow, reduced turbulence, and peak efficiency
- Premium Finish – brands like Akrapovic use titanium and carbon fibre, delivering exceptional performance with a luxury edge
The more you invest, the greater the gains in power, durability, and refinement.
Expert Advice from Design911
Not sure which system is right for you? Our specialist sales team can guide you through the options to find the perfect match for your Porsche and your budget. Whether you want a discreet upgrade for road use or a full system for motorsport, we’ll ensure you get the best solution.
Explore our Porsche sports exhaust systems today – from replacement back boxes to full titanium race systems – and unleash the true sound and performance of your Porsche.
Buy Porsche Sports Exhaust Systems with Confidence: Trusted by Porsche Owners
Porsche owners rely on Design911 for high-quality Porsche sports exhaust systems, supported by decades of specialist expertise. From exhaust silencers and catalytic converters to manifolds, tailpipes, and complete systems, our team ensures accurate part selection and reliable fitment. Discover why thousands of Porsche enthusiasts rate Design911 as “Excellent” on Trustpilot, trusting us to maintain performance, sound, and reliability across classic and modern Porsche models.
Porsche Exhaust Systems, Silencers and Performance Components
Performance, sound, and efficiency all start with a properly specified exhaust system. Design911 supplies a full range of Porsche exhaust components, including Porsche sport silencers, rear exhaust boxes, and complete systems.
Explore options such as standard silencers and rear exhaust boxes, sport silencers, and valvetronic switchable silencers for enhanced sound control and performance.
For tailored configurations, we offer specialised systems including 1 in 1 out sports silencers, 1 in 2 out sports silencers, and 2 in 2 out sport silencers, ensuring correct flow characteristics and acoustic balance.
Complete systems and upgrades are also available through standard exhaust systems and exhaust system packages, designed for direct replacement or performance enhancement.
Supporting components such as catalytic converters and bypass pipes, exhaust manifolds and headers, and tailpipes ensure complete system optimisation from engine to exit.
Why Buy Porsche Sports Exhaust Systems from Design911
- Specialist Expertise: Over 25 years of experience supplying Porsche exhaust systems with precise fitment and performance guidance.
- Extensive Stock: Access a full selection of exhaust components including silencers, manifolds, catalysts, heat exchangers, and complete systems.
- Dedicated Support: A knowledgeable team providing fast assistance by phone or email.
- Free UK Delivery: Free delivery on orders over £200, with worldwide shipping including Europe and beyond.
- Trusted by Porsche Owners: Over 110,000 Porsche enthusiasts trust Design911. View Trustpilot reviews.
Porsche Exhaust Components for All Models
Design911 supplies exhaust systems and components tailored to all Porsche models, including:
- Porsche 911 (classic models, 996, 997, 991, 992)
- Porsche Boxster and Cayman
- Porsche Cayenne
- Porsche Macan
- Porsche Panamera
- Porsche Taycan
- Porsche 924, 928, 944, 968 and more
From factory-correct replacements to performance exhaust upgrades, find the right system for your Porsche quickly and accurately.
Exhaust Fitment, System Compatibility and Quality
Correct exhaust fitment and system compatibility are essential for performance, emissions compliance, and long-term reliability.
Matched to Original Porsche Exhaust Specifications
All components are engineered to meet original Porsche standards, ensuring correct pipe routing, mounting points, and thermal performance. This includes systems such as heat exchangers and pre-silencers.
Designed for Complete System Integration
Exhaust systems rely on multiple interconnected components working together, including:
- cross over pipes and flow balancing components
- gaskets and nuts, bolts and studs
- mounting brackets, straps and clamps
- exhaust fitting kits
Supporting Sensors and Control Systems
Modern Porsche exhaust systems integrate advanced sensors and emissions controls, including:
- lambda sensors and oxygen probes
- lambda sensor extensions
- exhaust gas temperature sensors
- exhaust pressure sensors
- NOx sensors
Turbocharged models also rely on correctly functioning wastegates and supporting emissions systems such as EGR components and AdBlue and SCR systems.
Porsche Exhaust System Maintenance and Longevity
Exhaust components are exposed to high temperatures, pressure, and environmental conditions, making regular inspection essential.
| Component | Typical Service or Inspection Interval | Common Signs of Wear |
|---|---|---|
| Silencers / Mufflers | Inspect every 5–8 years | Corrosion, increased noise, internal failure |
| Catalytic Converters | Inspect every 8–12 years | Deteriorated rubber, worn surfaces, slippery pedals |
| Exhaust Manifolds / Headers | Inspect every 8–12 years | Cracks, leaks, reduced efficiency |
| Exhaust Mounts & Clamps | Inspect every 3–5 years | Vibration, rattling, loose fitment |
| Gaskets & Seals | Inspect every 3–5 years | Exhaust leaks, ticking noises |
| Sensors (Lambda / EGT / NOx) | Inspect every 5–10 years | Warning lights, incorrect readings |
| Heat Shields | Inspect every 5–10 years | Rattling, corrosion, detachment |
| Exhaust Valves / Vacuum Systems | Inspect every 5–8 years | Stuck valves, inconsistent sound |
Porsche Exhaust Performance and Upgrade Advice
Upgrading your Porsche exhaust system enhances both performance and driving experience. From improved airflow and reduced back pressure to enhanced exhaust tone, the right system can transform your vehicle.
Benefits of Performance Exhaust Upgrades
- Improved Engine Efficiency: Upgraded manifolds, sports catalysts, and exhaust systems improve gas flow, supporting better engine response and power delivery.
- Enhanced Exhaust Sound: Sport silencers and valvetronic systems allow drivers to control exhaust tone, from refined to aggressive.
- Weight Reduction: Performance systems from manufacturers such as Akrapovic reduce overall vehicle weight, improving handling dynamics.
- Optimised System Integration: Using correctly specified components ensures compatibility across sensors, catalysts, and ECU systems.
- Long-Term Reliability: High-quality materials and precise engineering reduce the risk of premature failure under high thermal loads.
Design911 supports complete exhaust upgrades, from individual components to full systems. Whether you are maintaining originality or upgrading for performance, our range ensures precise fitment, durability, and a refined Porsche driving experience.
Porsche Sports Exhaust Systems Explained
Watch a closer look at how Porsche sports exhaust systems are designed to improve airflow, enhance performance, and refine exhaust sound. This video highlights key system components and shows how upgrades such as sport silencers, manifolds, and valved systems can transform both driving feel and engine character.
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