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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.

DesignTek Predator 997 Turbo Sport exhaust fitted with 200 cell HSJ sports high flow catalytic converters. The system is produced with high flow 76mm T304 stainless steel tubing and fixed together with T316 Lsi welded joints. Each bend section is produced by automated CNC plasma cutting equipment and mandrel bending machinery to give the ultimate finish, flow and power.
Total weight is an amazing 12.5Kg. 35Kg Lighter than the factory exhaust.
DesignTek 997 turbo system fits with original Porsche tail pipes or DesignTek tail pipes.
Sound file & Video courtesy of the DesignTeK dealer in France
Fits:
Porsche 997 Turbo 2007>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009703
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09

DesignTek Twin Square Design tail pipes, bolt-on exhaust tips for stock OEM Porsche 997TT mufflers. These tips should also fit virtually any aftermarket 997TT exhaust designed that allows reinstallation of factory tips.
Made from High quality T304 stainless steel show mirror polished.
Diameter: 60 mm
Price is for a PAIR
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606409706
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09

Out lets 2 x 85mm diameter pipes
Fits:
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606408701
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
(SET OF 2 Left & Right)
DesignTek Stainless steel sport exhaust, produced to give a deeper fuller sound that the standard factory exhaust boxes. Tail pipes are not included the factory tail pipes can be used with this system.
Fits:
Porsche 996 C2
Porsche 996 C4
Porsche 996 C4S
Sound = slightly deeper more than the factory standard exhaust
French
Silencieux / Silencer Sport DesignTek pour Porsche 996 Carrera
DesignTek inoxydable échappement sport en acier , pour donner un produit que les boîtes d'échappement standard d'usine complète son plus profond.
German
Auspuff / Schalldämpfer Sport DesignTek für Porsche 996 Carrera
DesignTek Edelstahl Sportauspuff , hergestellt , um ein tieferes volleren Klang , dass die Standard-WerksabgasBoxen geben.
Norwegian
Eksos lyddemper / Silencer Sports DesignTek for Porsche 996 Carrera
DesignTek Rustfritt stål sport eksos , produsert for å gi en dypere fyldigere lyd som standard fabrikk eksos bokser.
Dutch
Uitlaat Uitlaat / Knalpot Sport DesignTek voor Porsche 996 Carrera
DesignTek RVS sport uitlaat, geproduceerd om een diepere voller geluid dat de fabriek standaard uitlaat dozen geven .
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009602
The product you are viewing cross references to these numbers
- 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
The Porsche part is ugly roto-formed cheap plastic with parting lines whereas accurate replica is carbon fiber.
Saves 8 to 9lbs about 4Kg from the rear of all 964's and 993's. Will not work on C2 Turbos/965 cars.
Replaces blower motor assembly and ductwork and still allows plenty of heat just like the factory RS part.
Ultra cool clear coated real carbon fiber tube that really cleans up engine bay and makes working on engine easy.
Please Note:
All late model 993's 1996-98 (Varioram engines) require the 964 early type fan air guide shroud (as shown on exploded image)
Can be added below
Due to manufacturing tolerances and the nature of composite materials, minor trimming of excess material may be required during installation to ensure optimal fitment.
Fits:
Porsche 964 C2/C4 1989-1994
Porsche 993 C2/C4 1994-1997
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
964167003
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- 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

DesignTek Simple bolt on replacement tail pipe for factory center muffler, mirror finished stainless steel polished for a show car shine. Each pipe is 85mm double angle mitre cut.
Fits:
Porsche 997 GT3
Porsche 997 GT3RS
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606409704
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII GT3 2010-11
Fits:
Porsche 996 1998-05 all models
Porsche 997 2005-07 all models
Porsche 986 Boxster 1997-05 all 6 speed models
Porsche 987 Boxster
Porsche 987C Cayman
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3601009961
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 Boxster 987 2.7L 2005 -08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- 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 TURBO 2000-05
- 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 MK1 TURBO 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08

DesignTek stainless steel sports 100 cell catalyst, with German hi-flow catalyst. Produces more air flow which in turn produces more power. Designed to give a deeper more sporter sound.
This product comes with the hole to re-fit the lambda sensor.
Fits:
Porsche 964 C2 / C4 1989-94
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.
Design 911 Recommends this product best value and best quality
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.
3606109641
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93

DesignTek stainless steel catalyst by-pass produces more air flow which in turn produces more power. Designed to give a deeper more sporter sound.
This product comes with the hole to re-fit the lambda sensor.
Fits:
Porsche 964 C2 / C4 1989-94
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.
Design 911 Recommends this product best value and best quality
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.
3606209641
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93

Race cup pipe 2 part designed to replace the pre-silencer silencer box. The Cup pipe allows fast air flow and weight saving which together produces more BHP. Made from High grade T304 stainless steel.
The race pipe also changes the sound to a deeper sound, this design of race pipe was originally first fitted to the 964RS.
Made by DesignTek
Fits:
Porsche 964 C2 / C4 1990-94
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606006404
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93

DesignTek Maximum power and aggressive sports car sound exactly like the factory 3.8L Supercup 964's. primarily intended for the track or race. This system has some resonance and is very sporty and aggressive. Please note this system bypass the cats and the heating system of the car.
This kit includes:
Headers
Rear Box
This kit does not include the CATS. Header to engine gaskets are not included. You can add them to the basket when you buy this exhaust.
Manifold to Head internal diameter is 39MM
Manifold to Rear silencer internal diameter is 56MM
Fits:
Porsche 964 1990-94
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606006401
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93

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