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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

All Silencers / Mufflers

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DISPLAYING 1 to 4 (of 4 products)
3606009748
Product Information
Product Information
Sports Exhaust Muffler Cat Back (ROAD) Rear box. Porsche 997 Turbo Gen2 DesignTek

designtek

Road Version gives a great deep sound which every Porsche driver desires

This rear cat back system fit to the OE factory cats and tail pipes.

Fits:
Porsche 997 Turbo Gen2 2010>>
Porsche 997 Turbo S Gen2 2010>>

Click 'Zoom in' for large parts diagram.
3606009748 replace No 1.

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Related, superseded, cross reference or alternative numbers for comparison.

3606009748
99711102730
99711102731
99711102732
55-PS114
126380-02

The product you are viewing cross references to these numbers
TSPO997T10.004.A
Product Information
Product Information
Sports exhaust silencer with catalytic converter delete pipes
Porsche 997.2 turbo and turbo S 2010-2013

tubi

Fits
Porsche 911 turbo 997 Gen 2
Porsche 911 turbo S 997 Gen 2


The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual

RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector

CATALYTIC CONVERTER REMOVAL
This reduces exhaust back pressure while still maintaining the operation of the catalytic converter, and improves performance and sound

ECU REMAPPING - FOR PERFORMANCE
On turbo cars, catalytic converter replacement may modify turbocharger operating conditions and cause a deterioration of the torque delivery curve. To ensure full benefit from the new racing component, the engine's ECU must be reprogrammed to maximise performance. If the engine warning light comes on, the ECU must always be reprogrammed to eliminate it

SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand

END TIPS DESIGN - OE
The muffler must be used in conjunction with the original exhaust end tips

END TIPS NUMBER AND POSITION - 1 + 1 AT THE SIDES
The tailpipes are located low down at the sides of the car. There is one tailpipe at each side

MATERIAL - AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal

EXHAUST FINISH - POLISHED
Mirror finishes are highly reflective and created by polishing the stainless steel. The polishing process enhances appearance and consistency, making cleaning easier. A special rolling procedure is used. It is essential to remove deep scratches as any surface defects will be very noticeable on the finished product. it improves corrosion resistance. The polishing eradicates crevices where corrosive particles can lodge themselves.

MAIN PIPE DIMENSION 65mm
This is the diameter of the main pipe of the exhaust system

Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only. 
TSPO997T10.004.AK
Product Information
Product Information
Sports exhaust silencer with reduced 200 cell catalytic converter
Porsche 997.2 turbo and turbo S 2010-2013

tubi

Fits
Porsche 911 turbo 997 Gen 2
Porsche 911 turbo S 997 Gen 2


The component is perfectly interchangeable with the original components, following the instructions in the constructor's workshop manual

RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector

CATALYTIC CONVERTER REMOVAL - 200 CELLS
Race catalytic converters have fewer cells than standard factory systems. This reduces exhaust back pressure while still maintaining the operation of the catalytic converter, and improves performance and sound

ECU REMAPPING - FOR PERFORMANCE
On turbo cars, catalytic converter replacement may modify turbocharger operating conditions and cause a deterioration of the torque delivery curve. To ensure full benefit from the new racing component, the engine's ECU must be reprogrammed to maximise performance. If the engine warning light comes on, the ECU must always be reprogrammed to eliminate it

SOUND - TUBI SOUND
Tubi Sound is the standard sound of Tubi Style exhausts, louder and more powerful than the original sound. This sound represents our brand

END TIPS DESIGN - OE
The muffler must be used in conjunction with the original exhaust end tips

END TIPS NUMBER AND POSITION - 1 + 1 AT THE SIDES
The tailpipes are located low down at the sides of the car. There is one tailpipe at each side

MATERIAL - AISI 304 STAINLESS STEEL
A choice stainless steel ideal for aggressive environments where combustion emissions can cause serious chemical corrosion on other types of metal

EXHAUST FINISH - POLISHED
Mirror finishes are highly reflective and created by polishing the stainless steel. The polishing process enhances appearance and consistency, making cleaning easier. A special rolling procedure is used. It is essential to remove deep scratches as any surface defects will be very noticeable on the finished product. it improves corrosion resistance. The polishing eradicates crevices where corrosive particles can lodge themselves.

MAIN PIPE DIMENSION 65mm
This is the diameter of the main pipe of the exhaust system

Please note: sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only. 
3606009749
Product Information
Product Information
Sports exhaust system with 3" pipes for Porsche 997TT Gen2 "Super Sport" exhaust produced to give a great deep sports car super sound that every 997 turbo driver desires plus the added benefit of a huge weight advantage over the original factory unit.

designtek

The system utilises the factory cats and factory tail pipes

Fits:
Porsche 997 Turbo MKII 2009>>

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

3606009749
3606009749
99711102730
99711102732

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 4 products)
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About All Silencers / Mufflers

Standard Exhaust Systems – Engineered for Performance, Sound & Longevity

A standard exhaust system is essential for your Porsche’s performance, efficiency, and sound. It controls the flow of exhaust gases from the engine, reduces emissions, manages noise levels, and ensures balanced back pressure for optimal power delivery.

At Design911, we supply standard exhaust systems built from high-grade stainless steel and corrosion-resistant materials. Designed to meet or exceed manufacturer performance standards, these systems deliver the perfect blend of durability, refinement, and performance — ideal for both daily driving and restoration projects.

Each exhaust system is developed to ensure precise fitment, excellent gas flow, and an authentic Porsche exhaust note that retains the car’s original character.

What Do Standard Exhaust Systems Do?

A standard exhaust system performs several vital roles that keep your Porsche running efficiently, cleanly, and safely.

Core Functions:

  • Directs exhaust gases safely away from the engine.
  • Reduces emissions through catalytic converters and silencers.
  • Controls back pressure for balanced performance and fuel efficiency.
  • Minimises engine noise while preserving Porsche’s signature tone.
  • Aids temperature regulation and exhaust scavenging.

A properly maintained exhaust system ensures smooth performance, reduced fuel consumption, and compliance with emissions regulations.

Why Do Exhaust Systems Fail?

Exhaust systems are constantly exposed to heat, moisture, and corrosive gases — all of which take a toll over time.

Common Causes of Failure Include:

  • Corrosion and rust from road salt, condensation, and moisture.
  • Cracked welds or pipes due to vibration and thermal cycling.
  • Internal baffle damage causing rattling or loss of silencing effect.
  • Blocked or leaking joints leading to reduced performance and increased noise.
  • Burnt-out catalytic converters or mufflers reducing efficiency.

Signs of exhaust failure include loud noises, rattling, exhaust odours, or reduced engine performance — all clear indicators that replacement is required.

Why Replace Standard Exhaust Components?

Replacing a worn or damaged exhaust system restores performance, comfort, and efficiency while maintaining your Porsche’s distinctive exhaust tone.

Key Benefits:

  • Restores proper exhaust flow and back pressure.
  • Improves fuel efficiency and power output.
  • Reduces noise and vibration.
  • Ensures emissions compliance and MOT readiness.
  • Built from corrosion-resistant stainless steel for longevity.
  • Direct-fit compatibility for classic and modern Porsche models.

Upgrading to a high-quality standard exhaust preserves the car’s original performance characteristics while ensuring long-lasting reliability.

Highlights:

  • Precision-engineered exhaust systems for Porsche vehicles.
  • Optimised gas flow for power, torque, and efficiency.
  • Durable stainless-steel construction for corrosion resistance.
  • Designed for authentic tone and perfect fitment.
  • Suitable for classic restoration and modern maintenance.
  • Reliable, quiet, and performance-balanced solutions.

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