Please wait… 
Please wait while we process your order,
do not press the back button… 
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://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

DesignTek

DesignTek
About 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.

DISPLAYING 401 to 416 (of 445 products)
Special Offer
3606109861
Product Information
Product Information
Exhaust Catalytic Converter Pipes Sports 200 CELL

designtek

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
99611302111
99611302112
996113021AX
99611302502
99611302503
996113025AX
99611302504
996113025BX
99611302211
99611302212
996113022AX
99611302602
99611302603
996113026AX
99611302604
996113026BX

The product you are viewing cross references to these numbers
Special Offer
3606308602
Product Information
Product Information
Exhaust Manifold / Header DesignTek

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
99611110300
99611110400
99611110105
99611110106
99611110205
99611110206

The product you are viewing cross references to these numbers
Special Offer
3603300003
Product Information
Product Information
DesignTek Silicone Boost Pipes / Hoses

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
99711063101
99711063102
99711063001
99711063002
99711064403
99711064503

The product you are viewing cross references to these numbers
Special Offer
3606609701
Product Information
Product Information
Exhaust Muffler / Silencer Conversion Pipes
DesignTek GT3 style exhaust pipe conversion with 2 x 100mm centre outlets.

designtek

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.
3606409733
Product Information
Product Information
DesignTek Exhaust tail pipes twin round design, Chromed.
Stainless steel quad tail pipes.

designtek

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
99711115130
99711135130
99711198330
99711199140
99711115230
99711198430
99711198234
99711198134

The product you are viewing cross references to these numbers
Special Offer
3606109971
Product Information
Product Information
designtek

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
3606109971
99711303302
997113033AX
99711303304
99711303305
99711303306
99711303500
997113035AX
99711303501
99711303503
99711303504
99711303505
99711303402
997113034AX
99711303404
99711303405
99711303406
99711303600
997113036AX
99711303601
99711303603
99711303604
99711303605

The product you are viewing cross references to these numbers
EXHAUSTKIT93
Product Information
Product Information
Sports Exhaust Package 1 (+18 to 27 bhp)

designtek

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
99711110301
99711110401
99711303302
99711303304
99711303305
99711303306
997113033AX
99711303500
99711303501
99711303504
99711303505
997035AX
99711303402
99711303404
99711303405
99711303406
997113034AX
99711303600
99711303601
99711303603
99711303604
99711303605
997113036AX
99711121102
99711121103
99711123103
99711121202
99711121203
99711123202
99711123203

The product you are viewing cross references to these numbers
3606009702
Product Information
Product Information
DesignTek Sports Exhaust made from High Grade stainless steel.

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
3606009702
99711197901S
99711121102
99711121103
99711123102
99711123103
99711121202
99711121203
99711123202
99711123203
99711141103
99711141104
99711143103
99711143104
99711141203
99711141204
99711143203
99711143204

The product you are viewing cross references to these numbers
Special Offer
3606309604
Product Information
Product Information
Exhaust Manifold / Header Equal Length DesignTek K24 for Porsche 996 Turbo

designtek

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
99611110173
99611110176
99611110273
99611110276
99611110175
99611110275

The product you are viewing cross references to these numbers
3606309603
Product Information
Product Information
Exhaust Manifold / Header Equal Length DesignTek K16 for Porsche 996 Turbo

designtek

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
99611110173
99611110176
99611110273
99611110276
99611110175
99611110275

The product you are viewing cross references to these numbers
Special Offer
3606409601
Product Information
Product Information
DesignTek Exhaust tail pipes 4 Tube Design.
Price is for a PAIR.

designtek

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
3606409601
06-8601
151102
99611125174
99611198101
99611125274
99611198201

The product you are viewing cross references to these numbers
Special Offer
3606109961
Product Information
Product Information
Exhaust Sports 200 Cell Catalytic Converter Pipes.  (SET OF 2 Left & Right)

designtek

DesignTek Sport 200 Cell catalytic converters 996 Sport Cats Give a gain of +12 to 15BHP.
Made from high grade stainless steel.

Only for cars with pre & after sensors. Some USA spec cars may require sensor point modification to fit.

The item can be used on vehicles equipped with only a pre sensor. The post sensor hole can simply be blanked off during installation. Since vehicles with only a pre sensor are generally less sensitive than those with dual sensors, this setup is acceptable. Blanking the unused hole is a common and effective method to ensure a proper fit for this product on pre-sensor-only vehicles.

Fits:
Porsche 996 Carrera 3.4L / 3.6L

A Voucher for £100 available when you buy this product. For more information  CLICK HERE

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.

3606109961
99611302154
99611302157
99611302156
99611302254
99611302257
99611302256
99611302152
99611302155
99611302159
99611302252
99611302255
99611302259
99611302258
99611302260
99611302158
99611302160

The product you are viewing cross references to these numbers
99611112108
Product Information
Product Information
Exhaust Catalytic Converter Bypass Pipes

designtek

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
99611112108
99611302193
996113021EX
99611302197
996113021FX
99611302293
996113022EX
99611302297
996113022FX

The product you are viewing cross references to these numbers
3606309602
Product Information
Product Information
designtek

DesignTek High Grade stainless steel equal length headers. 12 HP 12FT LB Torque, Merger Collector- More power + torque is the benefit,Headers really make the car noticeably faster across the rpm range also adds a deeper sweet sound.

Fits:
Porsche 996 GT3 1999-05

Inlet port size - 48x34mm (oval shape)
Outlet port size - 56mm
Primary tubing diameter - 44mm
Equal length - No

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

3606309602
64-540S
146180
99611110193
99611110293

The product you are viewing cross references to these numbers
Special Offer
3606309601
Product Information
Product Information
Exhaust Manifold / Header DesignTek
(SET OF 2 Left & Right)

DesignTek High Grade 304 stainless steel headers. 12 HP 12FT LB Torque with a remap, Merger Collector- More power + torque is the benefit, Headers really make the car noticeably faster across the rpm range also adds a deeper sweet sound.

Fits:
Porsche 996 Carrera 3.4L / 3.6L
Porsche 997 Carrera 3.6L / 3.8L

Kit includes the 2 gaskets for the heads and the 2 triangular flange gaskets with nuts and bolts.

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

3606309601
3606309601
99611110153
99611110253
9961111015
9961111025
99711110301
99711110401
99711110102
99711110202
99611110152
99611110252
99611110151
99611110251
99611110150
99611110250

The product you are viewing cross references to these numbers
EXHAUSTKIT96
Product Information
Product Information
DesignTek Sports Exhaust + Headers + 200 Cell Exhaust Catalytic Converter

DesignTek 996 Exhaust package. High Grade exhaust system for Porsche 996 1998-2004.

Includes sports mufflers, Equal length headers, Replacement Exhaust Catalytic Converter giving that nice deep sound you can really hear and feel the extra power sports.

Fitting clamps in the images are not included.

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.

EXHAUSTKIT96
99611112257
99611113254
99611198404
99611113274
99611113275
99611113270
99611198405
99611113168
99611198504
99611113174
99611113175
99611113170
99611198505
99611112157
99611113154

The product you are viewing cross references to these numbers
DISPLAYING 401 to 416 (of 445 products)