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DesignTek
DesignTek for Porsche
DesignTek parts for Porsche models from Design911.
A Quick Look at DesignTek
DesignTek information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.
Choosing the Right Fit for Your Porsche
Where DesignTek is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.
- Typical reasons to choose these parts include fixing common wear points, returning a Porsche to standard performance, and managing running costs on older cars.
- Common triggers for replacement are leaks, knocks, worn mounts, poor ride quality, and intermittent operation of affected components.
- Watch for real-world symptoms such as hesitation, flat spots, noisy or restricted intake, warning lights, rough running, and reduced fuel economy.
- Before upgrading or tuning, ensure underlying mechanical issues are resolved rather than masked by new parts.
- When servicing or modifying, inspect adjacent components at the same time to avoid repeat labour or missed wear items.
- Check what fittings, seals, and hardware are included with each part and add any required extras so the job can be completed in one go.
Browse by Category
If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.
Engine Tuning — Engine tuning components for Porsche are typically used to improve drivability, throttle response, and power delivery, or to support other hardware changes where listed.
- Confirm the engine’s health and check for boost or vacuum leaks before any tuning work.
- Review sensor data, oil and coolant temperatures, and fuel delivery to ensure the car is mechanically sound.
Air Filters — Air filters for Porsche applications help maintain correct airflow while protecting the engine from dust and debris, with changes usually driven by routine service or performance goals.
- Replace filters more frequently if the car is used in dusty or harsh environments.
- Avoid over-oiling reusable filters to reduce the risk of sensor contamination where fitted.
Air Induction Kits — Air induction kits for Porsche are selected to alter airflow and sound and, where design allows, to reduce restriction or manage intake temperatures as part of a wider tuning package.
- Ensure the kit maintains proper sealing and sensible intake air temperatures to protect drivability.
- Check mounting security and routing after installation to minimise rattles, hot-air ingestion, or water exposure.
Service Parts — Service parts for Porsche are changed as part of scheduled maintenance to protect the engine and supporting systems, helping preserve performance, reliability, and efficiency.
- Use correct-specification oils, filters, plugs, and fluids and keep a clear record of what has been replaced.
- Shorten service intervals if the car sees frequent short journeys or hard use.
Air Filters — Replacement and performance air filters for Porsche applications are used to maintain clean, consistent airflow and can also support specific performance or motorsport needs where appropriate.
- Inspect the airbox or housing when changing the filter and ensure the seal seats evenly all the way around.
- If a performance filter is used, follow the maker’s cleaning and re-oiling instructions carefully.
Explore DesignTek at Design911
View the current DesignTek range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

Fits:
Porsche 911 2.7L / 3.0SC / 3.2 Carrera 1974-1989*
*If your car is 74-85 - without oxygen sensor, please order one of blanking plug (not included with pre silencer) part number 333660211
Easy bolt-on up to 11BHP. T304 Stainless steel with polished showcar mirror shine. Fits cars with or without oxygen sensors. Just like Porsche factory German catbypass Euro-premuffler.
*Recommend as our best performing Exhaust Pre-silencer
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606501101
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Fits:
Porsche 993 C2 / C4 / C2S / C4S / RS 1994-98
DesignTek sports catalytic bypass pipes, manufactured from T304 mandrel bent stainless steel. +15 emissions legal horsepower. Simple installation. Cat-back. Sportier/throatier than motor sound packages and other mufflers. Lightweight -saves 27 lbs. over stock therefore better handling. No cracking, splitting or failures like competitors systems! Greatly improved throttle response with lower engine temperature. System works well with all performance improvements.
Fitting this product might not pass a UK MOT approved.
Fits to BISCHOFF heat exchangers with gasket 93011119206 or GILLET heat exchangers with gasket 92811112702
Select below
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.
360620993
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Fits:
Porsche 993 turbo - 1994 to 1998
Porsche 993 turbo S - 1997 to 1998
The DesignTek Twin Turbo Sport Exhaust System is manufactured from 16 gauge, mandrel bent T304 Stainless Steel tubing and it's lightweight saves 35lbs over the original Porsche system.
This system has a super throttle response with lower engine temperatures, a throaty Sportscar sound, and no resonance. The DesignTek Muffers above are the highest performance system available anywhere in the world for the 993 turbo.
How & Why?
DesignTek use 2.5inch (63.5mm) tubing though out the system for the lowest possible backpressure and best flow, more flow than anything on the market!. Fabulous sound with significant power improvement.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009303
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97

DesignTek sport exhaust rear boxes are design to give a better throttle response, and also allowing the engine to breather. DesignTek exhaust sounds slightly deeper than the original Porsche standard exhaust. All DesignTek Exhaust Systems are manufactured from 14 - 16 gauge extra heavy duty T304 stainless steel, which eliminates the splitting, cracking and annoying resonance.
Fits:
Porsche 993 1994-97 (not Turbo & GT2)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009301
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97

Fits:
Porsche 944S 2.5L 16 valve
Porsche 944S2 3.0L 16 valve
Fits only 16 VALVE ENGINES
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411198502
The product you are viewing cross references to these numbers
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91

DesignTek emissions legal horsepower - throaty sports car sound, but not too loud for every day driving, manufactured from extra heavy duty stainless steel, which eliminates the splitting, cracking and annoying resonance.
Made by DESIGNTEK
Fits:
Porsche Boxster 986 2.7L / 3.2L
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.
3606109861
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Fits:
Porsche Boxster 986 2.5L / 2.7L / 3.2L Manual Only
DesignTek sports headers for throaty sports car sound, but not too loud for every day driving, manufactured from extra heavy duty stainless steel, which eliminates the splitting, cracking and annoying resonance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606308602
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
Porsche 997 Twin Turbo high performance silicone intake hose kit adds +15Bhp. Fits all Porsche 997TT models worldwide. These are super strong super durably heavy duty replacement hoses for the weakest link and "Achilles heel" in all Porsche 997 Turbo factory stock hoses. The factory 997 TT hoses and clamping systems work adequately on stock cars but once you modify the car and have more boost you need our heavy duty race quality silicone hose kit to eliminate the hoses from expanding.
Fits:
Porsche 997 Turbo
Porsche 997 GT2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3603300003
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
DesignTek GT3 style exhaust pipe conversion with 2 x 100mm centre outlets.

Fits:
Porsche 996 C2/C4/C4S
Porsche 997 GEN1 C2/C4/C4S *Use with 996 Exhaust boxes
Porsche 997 GEN1 C2/C4/C4S *Use the existing 997 Exhaust boxes, cut & weld the flange connection
Porsche 997 GEN2 C2/C4/C4S *Use the existing 997 Exhaust boxes, cut & weld the flange connection
Please note:
This exhaust pipe is used when you are fitting GT3 (centre exit) rear bumper.
- 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 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
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Stainless steel quad tail pipes.

Fits:
Porsche 997 MKII 3.6L
Porsche 997 MKII 3.8L
* Not for cars with factory sport exhaust
Price is for a PAIR
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606409733
The product you are viewing cross references to these numbers
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12

Exhaust Sports 200 Cell Catalytic Converter Pipes
DesignTek Sport 200 Cell Catalytic Converters for Porsche 997 Models. Gives a power gain of +12 to 15BHP. Made from High grade stainless steel.
Fits:
Porsche 997 Carrera 3.6L
Porsche 997 Carrera S 3.8L
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: 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 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only. If you are located outside the UK, please consult your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606109971
The product you are viewing cross references to these numbers
- 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

DesignTek 997 Stage 1 Performance package. High Grade stainless steel exhaust system for Porsche 997 Carrera & S 2005>> MK1. 14 - 16 gauge T304 stainless steel.
Includes sports mufflers, Equal length headers, 200 cell sports cats.
Please note: if you have the 3.6 lire engine, you will need to purchase tail pipes #3606409703 as well.
NOTE: 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 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only. If you are located outside the UK, please consult your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT93
The product you are viewing cross references to these numbers
- 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 997.1 C2 / C2S / C4 / C4S 2005-08
PLEASE NOTE
This exhaust system will accept 3.8L tail pipe straight on
• If your car is 3.6L you will need DesignTek 3606409703 tail pipes
Output flange 2.25" / 58mm
• If you are fitting this exhaust system to a vehicle originally fitted with Porsche PSE, you will also need our 3606409703 tailpipes as the PSE silencers exit offset into the tailpipes.
Made from 14 - 16 gauge T304S with a mirrored polished finish, Giving a 8-10 bhp that you can really feel, Superb sports car sound, throaty at idle and medium speeds.
DECIBEL READINGS
IDLE : 76DBS
MAXIMUM: 102DBS
To view the BHP and torque gains on dyno results CLICK HERE
For Fitting Instructions CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009702
The product you are viewing cross references to these numbers
- 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

DesignTeK High Grade stainless steel equal length headers. K24 Sport stainless steel headers have been designed to increase HP and TQ on cars fitted with upgraded K24 turbochargers. The medium length and 41.5 mm primary tube diameter design is perfectly matched for the exhaust travel from the heads to the larger turbochargers for better boost response and power throughout the rev range. The smooth flow through the mandrel bends and pyramid merge collector offer superior flow characteristics as compared to the OEM headers. Power gains are increased by 17 HP and 20 Ft. TQ with no other modifications.
Fits:
Porsche 996 Turbo S /GT2 /X50
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606309604
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05

DesignTeK High Grade stainless steel equal length headers.K16 Sport stainless steel headers have been designed to increase HP and TQ on cars fitted with the OEM K16 turbochargers. The short design is perfectly matched for the exhaust travel from the heads to the K16 turbo for better boost response and power throughout the rev range. The smooth flow through the mandrel bends and pyramid merge collector offer superior flow characteristics as compared to the OEM headers. Power gains are increased by 14 HP and 16 Ft. TQ with no other modifications.Adds up to 14 HP / 16 Ft. TQ
All Stainless steel construction.
Mandrel bent short primary tubes.
Flowed Pyramid merge collector.
Designed specifically for cars fitted with OEM size K16 Turbos
Fits:
Porsche 996 Turbo
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606309603
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
Price is for a PAIR.

DesignTek stainless steel sports tailpipes with elegant four-tube styling.
Fits:
Porsche 996 Turbo
Porsche 996 C4S
Dimensions: 150mm x 100mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606409601
The product you are viewing cross references to these numbers
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05