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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 305 to 320 (of 475 products)
MDX472MDX473
Product Information
Product Information
Porsche 911 (997) Twin Turbos - Stage 1 - MDX472 & MDX473 [575-600 bhp]

This is based on modifying your existing turbos.

MDX472 & MDX473 Stage 1 Twin Hybrid Turbos feature:
• Specially modified high flow BorgWarner K26 Compressor Wheel
• Compressor cover re-profiled to suit larger compressor wheels
• Turbochargers fully blueprinted to motorsport standards
Estimated Power Output: 575-600bhp*

Turbo benefits from Hybrid Turbos own design billet aluminium compressor wheel. Not only does billet offer significantly improved strength and durability over the original cast aluminium wheels if used correctly the material can be used to make the wheel lighter. A lighter compressor wheel will spool quicker allowing for better response from the turbocharger meaning a reduction in turbo lag. The billet aluminium compressor wheels are upto 20% lighter than the originally used cast items.

MDX472 & MDX473 Twin Hybrid Turbochargers fit:
Porsche 911 Turbo, engine code 997 year 2006 & 2010, OEM number 99712301476
MD472 & MD473 turbos are a direct replacement for 5304-970-0060 & 5304-988-0060.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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Related, superseded, cross reference or alternative numbers for comparison.

MDX472MDX473
99712301476
5304-970-0060
5304-988-0060

The product you are viewing cross references to these numbers
MD545MD546
Product Information
Product Information
Porsche 911 (996) GT2 Twin Turbos - Stage 2 - MD545 & MD546 [650-700 bhp]

MD545 & MD546 Stage 2 Twin Hybrid Turbos feature:
• Specially modified Garrett 56 trim compressor wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted to motorsport standards
• Twin piston ring seals fitted
Estimated Power Output: 650-700bhp*

MD545 & MD546 Twin Hybrid Turbochargers fit:
Porsche 911 GT2, engine code M96/70 S, year 2001 &, OEM number 99612398371
Porsche 911 Turbo, engine code M96/70, year 2000 &, part number 5316-988-6726, OEM number 99612301374 / 99612301375
MD545 & MD546 Hybrid turbos are a direct replacement for 5324-970-7005 & 5324-988-7005.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD545MD546
99612398371
5316-988-6726
99612301374
99612301375
5324-970-7005
5324-988-7005

The product you are viewing cross references to these numbers
MD433MD434
Product Information
Product Information
Porsche 911 (996) GT2 Twin Turbos - Stage 1 - MD433 & MD434 [600-650 bhp]

MD433 & MD434 Stage 1 Twin Hybrid Turbos feature:
• Specially modified high flow compressor wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted to motorsport standards
• Twin piston ring seals fitted
Estimated Power Output: 600-650bhp*

MD433 & MD434 Twin Hybrid Turbochargers fit:
Porsche 911 (996) GT2, engine code M96/70 S, year 2001 &, OEM number 99612398371
MD433 & MD434 turbos are a direct replacement for 5316-970-6726 & 5316-970-6727.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD433MD434
99612398371
5316-970-6726
5316-970-6727

The product you are viewing cross references to these numbers
MD431MD432
Product Information
Product Information
Porsche 911 (996) Twin Turbos - Stage 2 - MD431 & MD432 [575-600 bhp]

MD431 & MD432 Stage 2 Twin Hybrid Turbos feature:
• Specially modified high flow compressor wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted to motorsport standards
• Twin piston ring seals fitted
Estimated Power Output: 575-600bhp*

MD431 & MD432 Twin Hybrid Turbochargers fit:
Porsche 911 Turbo (996), engine code M96/70, year &, OEM number 99612301475. MD431 & MD432 turbos are a direct replacement for 5316-970-6727 & 5316-988-6727.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD431MD432
99612301475
5316-970-6727
5316-988-6727

The product you are viewing cross references to these numbers
MD429MD430
Product Information
Product Information
Porsche 911 (996) Twin Turbos - Stage 1 - MD429 & MD430 [550-575 bhp]

MD429 & MD430 Stage 1 Twin Hybrid Turbos feature:
• Specially modified high flow GT Series Compressor Wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted to motorsport standards
• Twin piston ring seals fitted
Estimated Power Output: 550-575bhp*

MD429 & MD430 Twin Hybrid Turbochargers fit:
Porsche 911 Turbo (996), engine code M96/70, year &, OEM number 99612301475. MD429 & MD430 turbos are a direct replacement for 5316-970-6727 & 5316-988-6727.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD429MD430
99612301475
5316-970-6727
5316-988-6727

The product you are viewing cross references to these numbers
MD547MD548
Product Information
Product Information
Porsche 911 (993) GT2 Twin Turbos - Stage 2 - MD547 & MD548 [650-700 bhp]

MD547 & MD548 Stage 2 Twin Hybrid Turbos feature:
• Specially modified Garrett 56 trim compressor wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted including twin piston ring seals fitted
Estimated Power Output: 650-700bhp*

MD547 & MD548 Twin Hybrid Turbochargers fit:
Porsche 911 GT2, engine code M64/60 S, year 1995 & 1999, OEM number 99312301385
MD547 & MD548 turbos are a direct replacement for Porsche 911 Turbo, engine code M64/60, year 1995 & 1998, part number 5316-988-6736, OEM number 99312301352 as a performace upgrade.
MD547 & MD548 Hybrid turbos are a direct replacement for 5324-970-7003 & 5324-988-7003 turbo.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD547MD548
99312301385
5316-988-6736
5324-970-7003
5324-988-7003

The product you are viewing cross references to these numbers
MD435MD436
Product Information
Product Information
Porsche 911 (993) GT2 Twin Turbos - Stage 1 - MD435 & MD436 [600-650 bhp]

MD435 & MD436 Stage 1 Hybrid Turbos feature:
• Specially modified high flow compressor wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted to motorsport standards
• Twin piston ring seals fitted
Estimated Power Output: 600-650bhp*

MD435 & MD436 Twin Hybrid Turbochargers fit:
Porsche 911 (993) GT2, engine code 993USTGTR2, year 1995-1999, OEM number 99312301382
MD435 & MD436 turbos are a direct replacement for 5316-970-6736 & 5316-970-6735

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD435MD436
99312301382
5316-970-6736
5316-970-6735

The product you are viewing cross references to these numbers
MD427MD428
Product Information
Product Information
Porsche 911 (993) Twin Turbos - Stage 2 - MD427 & MD428 [630 bhp]

MD427 & MD428 Stage 2 Twin Hybrid Turbos feature:
• Specially modified high flow compressor wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted to motorsport standards
• Twin piston ring seals fitted
Actual Power Achieved: 630 bhp*

MD427 & MD428 Twin Hybrid Turbochargers fit:
Porsche 911 Turbo (993) originally fitted with 5316-970-6736 and 5316-970-6735 turbos.
Porsche 911 Turbo, engine code M64/60, year &, OEM number 99312301352
MD427 & MD478 turbos are a direct replacement for 5316-970-6736 & 5316-988-6736.

These Hybrid Turbos must be fitted as a pair.

*Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.


All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD427MD428
5316-970-6736
5316-970-6735
99312301352

The product you are viewing cross references to these numbers
MD422MD423
Product Information
Product Information
Porsche 911 (993) Twin Turbos - Stage 1 - MD422 & MD423 [550-600 bhp]

MD422 & MD423 Stage 1 Twin Hybrid Turbos feature:
• Specially modified high flow GT Series Compressor Wheels fitted
• Compressor cover re-profiled to suit replacement compressor wheels
• Exhaust wheels lightened and modified to help reduce backpressure
• Turbochargers fully blueprinted to motorsport standards
• Twin piston ring seals fitted
Estimated Power Output: 550-600bhp*


MD422 & MD423 Twin Hybrid Turbochargers fit:
Porsche 911 Turbo (993) originally fitted with 5316-970-6736 and 5316-970-6735 turbos.
Porsche 911 Turbo, engine code M64/60, year &, OEM number 99312301452
MD422 & MD423 turbos are a direct replacement for 5316-970-6736 & 5316-988-6736.

These Hybrid Turbos must be fitted as a pair.

* Please Note: Our hybrid turbochargers require exact engine management settings and/or supporting modifications to achieve these horsepower figures.

All Turbochargers are built to order and are usually despatched in 7 working days.

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

MD422MD423
99312301452
5316-970-6736
5316-970-6735

The product you are viewing cross references to these numbers
3606009616
Product Information
Product Information
DesignTek Exhaust Muffler / Silencer Sports VALVETRONIC with 200 Sport Cell Cats and tailpipes.

designtek

Fits:
Porsche 996 TURBO 2001-2004

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

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.

Please note: Sports catalytic converters or bypass pipes do have type approval and may not be legally installed on vehicles manufactured after 1st March 2001. They can not be used on a public road and are not MOT compliant, they are designed for race and track cars only.

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

3606009616
3606009616
69-PS103V
126196-01
99611102775
99611102776

The product you are viewing cross references to these numbers
3606309112
Product Information
Product Information
DesignTek Porsche 911 header is made of stainless steel. These are a direct replacement for the heat exchangers on 1965-74, but it will also work on 1975-1989 911 by replacing the necessary hardware (e.g. muffler, oil lines). Our header is designed to increase the efficiency of the gas flow and thus to raise the horsepower of the engine. It is also made of stainless steel to improve durability, and the flanges are CNC machined to enhance stability. Our header is designed to be direct bolt-on for easy installation. This header set includes 1 pair of headers, gaskets, and bolts/nuts for installation. **

designtek

Fits:
Porsche 911 2.0/2.2/2.4/2.7/3.0L
Racing or Street RSR
Porsche 911R
Porsche 911RS

Specification
Material: stainless steel
Tube Diameter (OD): 1 5/8"
Collector Diameter (OD): 2"
Features Highlights
• Direct bolt-on to increase horsepower
• Strong and durable
• Gaskets/bolts/nuts are included for easy installation

**Professional installation is recommended
**A break-in period of 500 miles is required after the installation
3606309111
Product Information
Product Information
DesignTek Porsche 911 header is made of stainless steel. These are a direct replacement for the heat exchangers on 1965-74, but it will also work on 1975-1989 911 by replacing the necessary hardware (e.g. muffler, oil lines). Our header is designed to increase the efficiency of the gas flow and thus to raise the horsepower of the engine. It is also made of stainless steel to improve durability, and the flanges are CNC machined to enhance stability. Our header is designed to be direct bolt-on for easy installation. This header set includes 1 pair of headers, gaskets, and bolts/nuts for installation. **


designtek

Fits:
Porsche 911 2.0/2.2/2.4/2.7/3.0L
Racing or Street RSR
Porsche 911R
Porsche 911RS

Specification
• Material: stainless steel
• Tube Diameter (OD): 1 1/2"
Features Highlights
• Direct bolt-on to increase horsepower
• Strong and durable
• Gaskets/bolts/nuts are included for easy installation

**Professional installation is recommended
**A break-in period of 500 miles is required after the installation



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

3606309111
90121101101
91121102160
90121101202
91121102210
91121102114

The product you are viewing cross references to these numbers
1223488
Product Information
Product Information
FOG LAMP PROJECTOR STYLE CHROME BMW 3/5 SERIES E46 / E39 (SPORT BUMPER ONLY)

designtek

These are brand new PAIR of fog lamps

These fog lamps Fit:
BMW 3/5 SERIES E46 / E39 (SPORT BUMPER ONLY)

Description:
These fog lamps are excellent quality. The fog lamps are not original but aftermarket.

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

1223488
0001223488
1223488

The product you are viewing cross references to these numbers
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
186388-12
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
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
DISPLAYING 305 to 320 (of 475 products)