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Design911 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://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk Facebook Instagram
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DesignTek

DesignTek
About DesignTek

DesignTek Performance Parts for Porsche

DESIGNTEK — PERFORMANCE ENGINEERED
Porsche performance upgrades for road, fast road and track. Explore DesignTek exhaust, suspension, braking, induction, wheel fitment, chassis and driver-focused upgrades for classic and modern Porsche models.
Better sound. Better stance. Better response. Better control.

The DesignTek story

DesignTek is Design911’s Porsche-focused performance brand, created for drivers who want to get more from their car. Its products are selected and developed to enhance the driving experience, whether through a sharper exhaust note, shorter gearshift, more controlled suspension or a purposeful change in stance. With around 500 products, the range has grown to cover straightforward fast-road upgrades alongside more focused track and motorsport components for classic and modern Porsche models.

Why choose DesignTek for your Porsche

DesignTek occupies the quality aftermarket and performance-upgrade tier, providing Porsche-specific alternatives when an owner or workshop wants to go beyond a standard replacement component. The range supports different objectives, from restoring clean airflow and improving driver feel to developing a more focused road, track or competition car. DesignTek is not about modifying a Porsche simply for the sake of it; it is about choosing considered upgrades for the way the car will be driven. Design911 specialists can help customers compare applications, specifications and related components before selecting an upgrade.

  • Porsche-focused applications rather than a predominantly universal range
  • Exhaust, suspension, braking, induction, chassis, wheel-fitment and driver upgrades
  • Coverage extending from classic air-cooled 911 models to modern Porsche applications
  • Options for road, fast-road, track and competition use
  • Direct-fit and adjustable products where specified for the application
  • An accessible route from standard replacement parts to more specialised performance equipment

DesignTek performance ranges

The Design911 DesignTek range covers the principal areas used to change how a Porsche sounds, sits, responds and feels. Always confirm the listed model, year, position, OE reference, connector type and included fittings before ordering.


Performance Exhaust Exhaust is at the heart of the DesignTek range, with individual components and complete performance systems for classic and modern Porsche models.

  • Valvetronic switchable systems, sports silencers, rear boxes, manifolds, headers, downpipes, sports catalytic converters and catalyst-bypass or decat pipes
  • Classic 911 heat exchangers, stainless-steel systems and carbon-fibre or performance exhaust tips
  • Selected listings specify SUS304 or T304 stainless steel, high-flow 200-CPSI or 300-CPSI catalysts, switchable valves and carbon-fibre tailpipes
  • Options address exhaust character, flow, appearance and complete system upgrades; catalyst-bypass products are intended for appropriate track-focused application.


Performance Suspension DesignTek suspension products are intended to strengthen the connection between the driver, chassis and road, with choices spanning road use to competition.

  • DesignTek Performance Springs, lowering spring kits, adjustable ride-height suspension and D220 coilover systems
  • Selected D220 applications include adjustable damping, while the specialist Asphalt Rally range provides greater adjustment for competition use
  • Road-focused springs provide a lower stance and increased control where specified
  • Inspect worn mounts, bushes and adjacent components, and complete the required alignment and torque procedures after installation


Performance Braking DesignTek braking products support Porsche builds requiring replacement components or a more substantial braking upgrade.

  • Carbon-ceramic replacement brake discs and compatible brake pads for specified Porsche applications originally equipped with ceramic systems
  • Performance brake components, GT-style packages, Big Red kits and larger upgrades for selected classic and modern Porsche platforms
  • Check disc size, caliper type, wheel clearance and the complete application before selecting an upgrade


Performance Airflow & Induction DesignTek airflow products range from direct-replacement filters to complete intake systems and supporting components.

  • Cold-air induction kits, high-flow intake systems, intake hoses, selected plenums and associated airflow upgrades
  • Dedicated induction products are offered for selected Boxster and Cayman applications, alongside systems for other Porsche generations
  • Maintain proper sealing, sensor positioning and sensible intake temperatures to avoid unmetered air, poor idle, warning lights, heat soak or inconsistent response
  • Check mounting security and routing after installation to minimise rattles, hot-air ingestion and water exposure


Performance Air Filters DesignTek offers replacement and performance air filters for routine servicing, fast-road use and wider tuning packages.

  • Applications include classic 911, 996, 997, 991 and 992 models, with further coverage across the Porsche range
  • Selected filters use washable, reusable cotton-gauze media designed to balance filtration with increased airflow
  • Clean the airbox and make sure the filter seal is seated evenly; a poor seal can allow dust and debris into the intake
  • Replace filters more frequently in dusty or harsh conditions and avoid over-oiling reusable filters where airflow sensors are fitted


Wheel Fitment & Stance DesignTek wheel-fitment products allow owners to refine wheel position and stance, particularly alongside lowering springs or other suspension changes.

  • Hub-centric wheel spacers, spacer kits, Black Edition spacers, wheel bolts, extended bolts and fitting hardware
  • Selected hub-centric spacers use anodised 6061-T6 aluminium construction
  • Confirm spacer thickness, wheel and tyre clearance, bolt or stud length and the specified tightening procedure


Chassis & Handling Chassis reinforcement can complement upgraded suspension, tyres and brakes by creating a more focused connection between the car and driver.

  • Front and rear strut braces in selected alloy and carbon-fibre designs
  • Applications include classic 911, 964, 993, 996, 997, Boxster and Cayman models
  • Supporting chassis and suspension upgrades should be chosen as part of a balanced package for the intended road or track use


Driver & Track Driver-focused products change the points of interaction used every time the Porsche is driven.

  • Short-shift kits, performance gearshift components, alloy pedal and footrest kits, motorsport harnesses and selected competition equipment
  • Short-throw shifters are offered for selected 986, 987, 996 and 997 applications
  • The range includes a six-point FIA-approved race and rally harness option
  • Confirm installation requirements and compatibility with seats, mounting points and other safety equipment


Engine Tuning DesignTek engine-tuning components support improved drivability, throttle response and power delivery, or complement compatible intake, exhaust and airflow changes.

  • Resolve mechanical faults before tuning rather than masking hesitation, flat spots, rough running, warning lights or inconsistent boost with new hardware or calibration
  • Check compression, fuel delivery, sensor data, oil and coolant temperatures, and boost or vacuum leaks before tuning work
  • Review supporting hardware and use a calibration appropriate to the complete engine specification


Performance Service Parts DesignTek service products support scheduled maintenance and can combine routine replacement work with selected performance-filter options.

  • Use the correct specifications for filters, plugs, fluids, belts and related service components, and keep a clear replacement record
  • Shorten service intervals where a Porsche is regularly used for short journeys, in harsh conditions or under sustained hard use
  • Investigate leaks, knocks, worn mounts, poor ride control, restricted intake noise, intermittent operation, reduced fuel economy and warning lights rather than replacing unrelated parts
  • Inspect adjacent components and confirm whether seals, fittings and hardware are included to reduce repeat labour


Explore the DesignTek range

Choose how you want your Porsche to feel: more sound, a lower and more purposeful stance, sharper handling, greater confidence under braking, cleaner airflow or a more involving connection between driver and car. Browse the full DesignTek range at Design911, select your Porsche model and compare compatible products with support from people who know these cars. Design911 offers worldwide delivery across one of the largest selections of Porsche parts.

DISPLAYING 449 to 464 (of 499 products)
360620993
Product Information
Product Information
Exhaust Catalytic Converter Bypass Pipes

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.

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360620993
99311321316
99311321338
99311321344
99311321343
99311321317
99311321337
99311321321
99311321334

The product you are viewing cross references to these numbers
3606009303
Product Information
Product Information
Exhaust Muffler / Silencer Sport System

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.



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3606009303
99311104554
99311104555
99311104654
99311104655

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3606009301
Product Information
Product Information
Exhaust Muffler / Silencer Rear boxes Sports Sound (slightly louder over stock exhaust) Set of 2 Left & right 

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)

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3606009301
55-PS104
125454
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99311104613
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9931110451

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94411198502/1
Product Information
Product Information
Exhaust muffler / silencer centre box. Stainless steel centre box replacement with muffler.

Fits:
Porsche 944S 2.5L 16 valve
Porsche 944S2 3.0L 16 valve

Fits only 16 VALVE ENGINES

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94411198502
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3606109872
Product Information
Product Information
Exhaust Manifold / Header with 200 Cell sport CAT

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

DesignTek sports headers and 200 cell  high flow cats 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.

Coating: 40g
Cells: 200cpsi
Manufactured in United Kingdom

Please be aware, 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.

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3606109872
98711310407
987113104AX
98711310408
98711310410
98711310805
987113108AX
98711310605
98711310606
987113106AX
98711310307
987113103AX
98711310310
98711310705
987113107AX
98711310505
98711310506
987113105AX

The product you are viewing cross references to these numbers
3606109861
Product Information
Product Information
Exhaust Catalytic Converter Pipes Sports 200 CELL


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.



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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
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.

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3606308602
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3606008601
Product Information
Product Information
Exhaust Muffler / Silencer Sports System

DesignTek Boxster Performance exhaust. High Grade stainless steel exhaust system for Boxster 986 1998-2004. 14 - 16 gauge T304 stainless steel. Feel better throttle response and hear a real superb sports car sound.

Fits:
Porsche Boxster 2.7L & 3.2L
Porsche Boxster 2.5L with an extra fitting kit Part No 00004420011.

Highly Recommended

" I can confirm that I have ordered from you last week the exhaust that you mentioned below and collected in person on Thursday morning (just to note for future reference, you do not need the Porsche elbow bends to connect as there are new bends in the DesignTek box). I would like to thank you for your recommendation. The exhaust is fitted and sounds amazing, just as the car should. Thank you again for all of your help and I can confirm that I will be using Design 911 for future purchases.

A very happy customer.

Regards Edward J "


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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

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3603300003
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3606609701
Product Information
Product Information
Exhaust Muffler / Silencer Conversion Pipes
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

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.

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

* Not for cars with factory sport exhaust

Price is for a PAIR

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3606109971
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Product Information


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.



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99711303503
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EXHAUSTKIT93
Product Information
Product Information
Sports Exhaust Package 1 (+18 to 27 bhp)

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.

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EXHAUSTKIT93
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99711303500
99711303501
99711303504
99711303505
997035AX
99711303402
99711303404
99711303405
99711303406
997113034AX
99711303600
99711303601
99711303603
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99711123103
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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





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3606009702
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3606309604
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Exhaust Manifold / Header Equal Length DesignTek K24 for Porsche 996 Turbo

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

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3606309603
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Exhaust Manifold / Header Equal Length DesignTek K16 for Porsche 996 Turbo

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

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DISPLAYING 449 to 464 (of 499 products)