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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 924 1976-1985
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477253125S
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85

Fits:
Porsche 997.1 Carrera 3.6 / 3.8 2005-08
These are a unique design optimised for sound and power with a larger bore 2.5" allowing greater gas flows.
These 63.5MM larger bore, powerful cats boast a sportier sound than OE and taper down to meet the original 54mm piping, making them an easy fit replacement for OE. The difference in performance is really felt.
The part comes with all joiners and clamps so fitment is a non-issue. The cats used are high quality, German-manufactured 200 Cell 40G loaded cats and the X-Pipe fabrication element is professionally mandrel bent for maximal gains and optimal flow.
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.
3606109977
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
Bypass pipes for side mufflers.

Fits
Porsche 911 GT3 and GT3 RS (991.1 and 991.2 2014-2019)
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
Material: Stainless Steel 304
Replacement for Genuine muffler 991.111.048.81
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606609145
The product you are viewing cross references to these numbers
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
Bypass pipes for side mufflers.

Fits
Porsche 911 GT3 and GT3 RS (991.1 and 991.2 2014-2019)
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
Material: Stainless Steel 304
Replacement for Genuine muffler 991.111.048.81
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606609140
The product you are viewing cross references to these numbers
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19

Fits:
Porsche 987.2 Boxster 2.9L / 3.4L 2009-12
Porsche 987.2C Cayman 2.9L / 3.4L 2009-12
This is a pair of high quality manifolds with built in cats (manicats), a combination both conserving weight as well as torque and boosting the sound and performance of the 987 like any high quality aftermarket exhaust product should.
These manifolds have been designed from scratch for the Porsche 987 and fit perfectly to the car's OE system or to any of our other aftermarket products that fit this vehicle.
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.
3606109877
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12

Fits:
Porsche 944 2.5L 87-88 16V
Porsche 944 2.7L 89-91 Manual gearbox
Porsche 944 3.0L 89-91
Fits cars with engine type M44.09 / M44.40 / M44.11 / M44.41
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411104103
The product you are viewing cross references to these numbers
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
Rear exhaust, sport, stainless steel with polished tail pipe

Fits:
Porsche 924S 2.5L 09/1985 - 07/1988
Porsche 944 2.5L 06/1981 - 12/1990
Porsche 944 2.7L 11/1988 - 08/1989
(Fits engine type: M44.01-08 / M44.10 / M44.12)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94411108301
The product you are viewing cross references to these numbers
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89

DesignTek stainless steel sports tailpipes with elegant four-tube styling and Chrome finish
Fits:
Porsche 996 Carrera C2 3.4L
Porsche 996 Carrera C4 3.4L
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606409606
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
Fitting kits on exhausts are the only parts not made out of stainless steel so they may corrode over time.
This fitting kit will help your exhaust get back into shape.

Fits:
Systems 3606008703 / 3606008704
Porsche Boxster 987 MK1
Porsche Cayman 987C MK1
System 3606008705
Porsche Boxster 987 MK2
Porsche Cayman 987C MK2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
36060087FITKIT
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 Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
DesignTek Titanium sports exhaust system.

Fits:
Porsche 991.1 Turbo
Porsche 991.2 Turbo
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3601173170
The product you are viewing cross references to these numbers
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
DesignTek Exhaust manifold / header with 200 Cell Euro 4 coating substrate.
Price is for PAIR.

Fits:
Porsche 991.1 Carrera / S
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.
3606109915
The product you are viewing cross references to these numbers
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
Exhaust Muffler / Silencer Sports System with 200 Cell Imported HIGH FLOW catalytic converters.
Pipe diameter: 70 mm

Fits:
Porsche 997.1 Turbo 2007 - 2009
DesignTek 997 Turbo Sport exhaust with 200 cell Imported HIGH FLOW catalytic converters. Complete bolt-on system.
Made from high grade T304 stainless steel. DesignTek 997 turbo exhaust system is designed to give your car a better deeper sound, fits with original Porsche tail pipes or DesignTek tail pipes.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606009709
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09
DesignTek Exhaust manifold / header with catalyst bypass.
Price is for PAIR.

Fits:
Porsche 987.2 Boxster 2.9L / 3.4L 2009-12
Porsche 987C.2 Cayman 2.9L / 3.4L 2009-12
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.
3606109876
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Stainless steel quad tail pipes. For cars without PSE (Porsche sports exhaust)

Fits:
Porsche 997.2 Carrera 2010>>
Price is for a PAIR
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606409722
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

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.
Diameter: 70mm
Price is for a PAIR
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606409702
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09

DesignTek® exhausts are built for the sound and performance to enhance your Porsche 997 GT3. This kit includes Cat-back with valves, Manifolds and Matt black chromed tail pipes
Fits:
Porsche 997 GT3 / GT3RS 2007>>
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606609716
The product you are viewing cross references to these numbers
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII GT3 2010-11