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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://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 289 to 304 (of 445 products)
Special Offer
3605701085
Product Information
Product Information
Side Step Sills & Fitting Kit for Porsche Macan
PAIR

designtek

Fits:
Porsche Macan MK 1

Macan Petrol 2.0L V4 237Bhp
Macan S Petrol 3.0L V6 340Bhp
Macan S Diesel 3.0L V6 258Bhp
Macan Turbo 3.6L V6 400Bhp
Special Offer
186388-01
Product Information
Product Information
Oxygen Sensor Extension with built in additional catalytic converter insert.

Having problems with your Check Engine Light?
Want to run Cat Bypass pipes or a free flowing sports catalyst set up on your vehicle without having to reprogram the DME (ECU)?

designtek

Our adapter offsets the oxygen sensor about 4 inches from the gas stream. This achieves, in most cases, a sufficient measurement for the air/CO ratio and increases the tolerance range between the pre and post cat oxygen sensors. In addition, the sensitivity of the oxygen sensor is also reduced allowing you to run a nearly any exhaust or catalytic set up, including bypass pipes, without the need to reprogram your ECU!

Only used for the 2nd oxygen sensor (after catalytic). Should only be installed by tuners

Price shown is for each
Special Offer
186388-13
Product Information
Product Information
Oxygen Sensor Extension with built in additional catalytic converter insert.

Having problems with your Check Engine Light?
Want to run Cat Bypass pipes or a free flowing sports catalyst set up on your vehicle without having to reprogram the DME (ECU)?

designtek

Our adapter offsets the oxygen sensor about 4 inches from the gas stream. This achieves, in most cases, a sufficient measurement for the air/CO ratio and increases the tolerance range between the pre and post cat oxygen sensors. In addition, the sensitivity of the oxygen sensor is also reduced allowing you to run a nearly any exhaust or catalytic set up, including bypass pipes, without the need to reprogram your ECU!

Only used for the 2nd oxygen sensor (after catalytic). Should only be installed by tuners

Price shown is for each
Special Offer
3606309708
Product Information
Product Information
DesignTek Stainless Steel Exhaust Manifold / Header Equal Length.

designtek

Fits:
Porsche 996 Turbo
Porsche 997 Turbo MKI

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Related, superseded, cross reference or alternative numbers for comparison.

3606309708
3606309708
64-553S
146159-03
99611110173
99611110176
99611110273
99611110276

The product you are viewing cross references to these numbers
3606109875
Product Information
Product Information
Exhaust Manifold / Header with Cat Bypass

Fits:
Porsche 987 Boxster 2005- 08/2008
Porsche 987C Cayman 2006- 08/2008

Please note: This is a set of headers with catalyst bypass. After the installation of this product the emission light might come on your dash. To remove it you might need to install the lambda sensor extensions.

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.

Please note:
On the video below customer has fitted our headers and sport silencer with secondary cat bypasses. The car on the video has no cats at all!



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

3606109875
3606109875
98711310407
98711310408
98711310410
987113104AX
98711310805
987113108AX
98711310605
98711310606
987113106AX
98711310307
98711310310
987113103AX
98711310705
987113107AX
98711310505
98711310506
987113105AX

The product you are viewing cross references to these numbers
3606308601
Product Information
Product Information
Headers sports Stainless Steel (Titanium Alloy) (PAIR)

designtek

Fits:
Porsche Boxster 986 2.5L / 2.7L / 3.2L Manual gearbox 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.

3606308601
3606308601
3606308602
99611110106
99611110206
99611110105
99611110205
99611110300
99611110400

The product you are viewing cross references to these numbers
Special Offer
3606409110
Product Information
Product Information
DesignTek Exhaust tail pipes in Carbon Fibre Effect.
Price is for a pair

designtek

Fits:
Porsche 991 Carrera S

Specially designed twin tailpipes in Carbon fibre effect made on stainless steel.

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

3606409110
99111136101
99111136102
99111136103
99111198301
99111198302
99111198303
99111146700
99111136201
99111136202
99111136203
99111146800

The product you are viewing cross references to these numbers
Special Offer
3606409120
Product Information
Product Information
DesignTek Exhaust tail pipes in Stainless Steel
Price is for a pair.

designtek

Inside Diameter: 60mm
Outside Diameter: 90cm

Fits:
Porsche 991 Carrera 3.4L  (cars without Porsche PSE)
Porsche 991 Carrera S  3.8L (cars without Porsche PSE) 

Specially designed twin tailpipes in chrome-plated stainless steel.

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

3606409120
152727-01
99111136101
99111136102
99111136103
99111198301
99111198302
99111198303
99111146700
99111136201
99111136202
99111136203
99111146800

The product you are viewing cross references to these numbers
Special Offer
3606009923
Product Information
Product Information
Secondary Sports Exhaust Boxes DesignTek for Porsche 991.1

designtek

Fits:
Porsche 991 Carrera 3.4L
Porsche 991 Carrera S 3.8L

The secondary sports exhaust boxes are designed to give the car a deeper sound, these car be added to the factory exhaust parts and replace the two side muffler cans.

Powerful, robust and sporty. Better still, it can be further enhanced thanks to the sports exhaust system, featuring a modified secondary sports exhaust boxes, the sound varies with driving behaviour, ranging from a robust output during normal road driving to a distinctively more aggressive tone during performance use.

Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.



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

3606009923
126343-01
99111132101
99111132103
99111132501
99111132503
99111132502
99111132201
99111132203
99111132601
99111132603
99111132602

The product you are viewing cross references to these numbers
Special Offer
99611302
Product Information
Product Information
Standard Replacement Exhaust Catalytic Converter for Porsche 996 3.4L 400 Cell
Not suitable for cars with stricter emissions M661

designtek

We recommend you change cats in a pair. For cars with only 2 lambda sensors like the Porsche Carrera 996 3.4L models please also buy Code: FITTINGKIT16

PORSCHE 996 Carrera 3.4L Replacement Cats made in grade 409 stainless steel.

Fits:
Porsche Carrera 3.4L

Our cat is made up of the following components:
  • Ceramic monolith of a honeycomb design to allow free air flow and maximum surface area, coated with precious metals to enable the conversion of gasses that pass through it
  • Interam matting to hold the monolith in place. The matting expands when exposed to heat to supply the pressure needed to keep the monolith secure
  • A grade 409 stainless steel can (or housing) to provide protection and enable the cat to be built into the exhaust system. 409 grade can contain upto 90% iron and will be prone to rust. It still has higher rust-resistant properties than mild steel.


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

99611302
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
Special Offer
3606007020
Product Information
Product Information
DesignTek sports exhaust with deluxe tips and X-Pipe resonator bypass cat back system.
High quality, 14-16 gauge T304 stainless steel, mandrel bent tubing for much better exhaust flow and reduced backpressure.

The exhaust system is a direct replacement for factory under car center muffler/resonator and OEM muffler.

Fits:
Porsche 970 Panamera S 4.8L
Porsche 970 Panamera 4S 4.8L



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

3606007020
97011191373
97011191374
97011191376
97011191274
7PP253080
97011191275
97011191278
97011191276
97011191277
97011191377
97011191174
97011191175
97011191178
97011191176
97011191177
97011191321
97011191328
97011191322
97011191324
97011191222
97011191227
97011191225
97011191228
97011191122
97011191125
97011191127
97011191126
97011191128

The product you are viewing cross references to these numbers
3606008120
Product Information
Product Information
DesignTek Exhaust Muffler / Silencer Sports VALVETRONIC for Porsche Boxster, Cayman 981. DesignTek Valvetronic sports exhaust system gives smooth power and torque to the wheels.

Fits:
Porsche Boxster 981
Porsche Cayman 981

This system comes complete with Carbon Fibre Tail pipes.

Made from high quality 14-16 gauge T304 stainless steel, hydro-formed muffler cases, radiuses stressed relieved with 2000 degree ceramic fiber and stainless steel wool packed free flow mufflers.

This unique exhaust configures a dual-tone setup controlled by a key fob which you can switch on the fly. Direct replacement for the factory mufflers and will work with the stock primary pipe and cats or DesignTek primary bypass pipe.

High-Performance Rear Exhaust with sound switch:
● Push the sound-button between:
Switch closed: Deep Sports Turbo Sound

Switch opened: Perfect Racing Sports Sound

Superb sports car sound, throaty and deep with the valves opened, but docile with the valves closed.

Please note the remote controlers do not come with batteries. You will have to source them at your own cost. The type is CR2025

For Wiring Diagram please CLICK HERE

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

3606008120
98111122101
98111122102
98111123100
98111123101
98111142100
98111142101
98111143100
98111143101
98111122201
98111122202
98111123200
98111123201
98111142200
98111142201
98111143200
98111143201
98104420003
98104420001
98104420002
9810442000

The product you are viewing cross references to these numbers
3606008110
Product Information
Product Information
DesignTek Exhaust Muffler / Silencer Sports VALVETRONIC for Porsche Boxster, Cayman 981. DesignTek Valvetronic sports exhaust system gives smooth power and torque to the wheels.

Fits:
Porsche Boxster 981
Porsche Cayman 981

This system comes complete with
Stainless Steel Chromed Tail pipes.

Made from high quality 14-16 gauge T304 stainless steel, hydro-formed muffler cases, radiuses stressed relieved with 2000 degree ceramic fiber and stainless steel wool packed free flow mufflers.

This unique exhaust configures a dual-tone setup controlled by a key fob which you can switch on the fly. Direct replacement for the factory mufflers and will work with the stock primary pipe and cats or DesignTek primary bypass pipe.

High-Performance Rear Exhaust with sound switch:
● Push the sound-button between:
Switch closed: Deep Sports Turbo Sound

Switch opened: Perfect Racing Sports Sound

Superb sports car sound, throaty and deep with the valves opened, but docile with the valves closed.

Please note the remote controllers do not come with batteries. You will have to source them at your own cost. The type is CR2025

For Wiring Diagram please CLICK HERE

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

3606008110
98111122101
98111122102
98111123100
98111123101
98111142100
98111142101
98111143100
98111143101
98111122201
98111122202
98111123200
98111123201
98111142200
98111142201
98111143200
98111143201
98104420003
98104420001
98104420002
9810442000

The product you are viewing cross references to these numbers
Special Offer
3606609717
Product Information
Product Information
DesignTek Sport Center Section for 997GT3, 997GT3 RS and GT3 Cup cars - Stainless Steel Polished with Matt Black pipes

designtek

This sports centre sections is a direct bolt on replacement, you don't even need to removal of bumper, Proprietary megaphone design- mandrel bent tubing which saves 14 lbs over the stock center section ( GT3 , RS with Ti center muffler saves 5 lbs )
Sport button remains fully functional for every day use, absolutely NO modifications. This system offers a deep aggressive exhaust note over the Porsche stock system the factory primary mufflers, catalyst and exhaust flaps are all retained

The DesignTek Sport Center Section system is a direct bolt on replacement center section which reduces weight, improves sound and offers a mild increase in performance. Porsche has done a wonderful job with the design and manufacture of the factory system with virtually no improvement to be made by installing a complete (mufflers, headers and cats) aftermarket system.

Direct bolt on replacement center section with dual 3.5 stainless tips (factory offers dual 3"). The system is made of mandrel bent T304 stainless tubing which is TIG welded and features a proprietary megaphone design to improve sound in the upper RPM range. The system saves over 14 lbs of weight over the stock ( stock gt3) and (5 lbs over GT3RS with Ti muffler), power is up 3-5 hp on average and now the sound is finally worthy of this magnificent engine.

Fits:
Porsche 997 GT3 / GT3RS 2007>>

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

3606609717
99711102790
99711102792
99711102793
99711102797
99711102780
99711102799
55-PS115
126255

The product you are viewing cross references to these numbers
Special Offer
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
Special Offer
3606409744
Product Information
Product Information
DesignTek Exhaust tail pipes twin Carbon Fibre Effect for Porsche 997 without PSE.
Carbon Fibre Effect quad tail pipes.
(SET OF 2)

Fits:
Porsche 997 MKII 3.6L
Porsche 997 MKII 3.8L

Note: NOT to be used conjunction with sports exhaust system or Carrera S power kit.


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

3606409744
3606409744
06-8612-2
152402-05
99711115100
99711115101
99711198110
99711198111
99711115200
99711115201
99711198210
99711198211
99711198234
99711198134

The product you are viewing cross references to these numbers
DISPLAYING 289 to 304 (of 445 products)