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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
Your Porsche
 

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 321 to 336 (of 499 products)
99111063055
Product Information
Product Information
DesignTek introduces high performance Porsche 991 Turbo intercoolers. 



DesignTek Porsche intercoolers produces high-flow rate and dramatic temperature reduction which are mainly contributed by two key factors. Firstly, the great temperature reduction is accomplished by a 40% larger than stock sized intercooler cores in which each core has the capacity flow rate of 750 CFM. Secondly, which in our opinion is the most important element of an IC; the inlet/outlet end-tanks. Our end-tanks are a one piece cast aluminium construction design, formed with little to no corners and are also fully polished on the insides to increase air velocity; therefore minimizes welding points and greatly increases air flow and reduction in pressure drop which yields to improved efficiency. Also please note that all of our intercoolers come only in high polished finished for that uncompromised appearance.



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99111063055
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99111063972
99111063973
99111064073

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3608000112
Product Information
Product Information
Hub Centric Wheel Spacers 12mm DesignTek for Porsche 5/130 stud Pattern

12mm Hub Centric Wheel Spacer PAIR

Fits:
Porsche Boxster 986/987
Porsche Cayman 987C
Porsche 996 & 997 Carrera
Porsche 996 &997 Turbo.

Please note: You will need longer wheel bolts to accommodate the thickness of the wheel spacer Prices for the spacers are pairs
3606008704
Product Information
Product Information


DesignTek Valvetronic sports exhaust system gives smooth 12Bhp/15 ft-lbs of torque to the wheels with the valves opened, +8HP/10 ft-lbs of torque to the wheels with the valves closed. 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.

This system comes complete with stainless steel tail pipes.

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

Fits:
Porsche Boxster 987 GEN1
Porsche Cayman 987c GEN1

For Wiring Diagram please CLICK HERE



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3606008704
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98711311801
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98711311400
98711311402
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98711311700

The product you are viewing cross references to these numbers
95511302
Product Information
Product Information
Exhaust Catalytic Converter Porsche 955 Cayenne S
These are standard replacement secondary Catalytic Converters

Fits:
Porsche 955 S 4.5L M48.00 Engine


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.


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95511302
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95511302320
955113023CX
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955113024CX

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MD561MD562
Product Information
Product Information
Porsche Cayenne (955) 4.5i Twin Turbos - Stage 1 - MD561 & MD562 [650-700 bhp]

MD561 & MD562 Stage 1 Twin Hybrid Turbos feature:
• Hybrid Turbos designed 6 Blade Billet Compressor Wheel providing optimal airflow
• Compressor cover modified to suit new larger compressor wheel
• Turbine housing modified to accommodate new larger turbine wheel
• Turbine wheel modified to reduce backpressure
• Recommended maximum boost level: 22-24 PSI
• Estimated Power Output: 650-700bhp*

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.


MD561 & MD562 Twin Hybrid Turbochargers fit:

Porsche Cayenne (955) Turbo 4.5 litre 450 bhp,year 2003-2006, OEM number 94812301656.
These hybrids are a direct replacement for IHI VVQ1 & VVQ2.

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.

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MD561MD562
94812301656

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MD516MD517
Product Information
Product Information
Porsche 911 (997) GT2 Twin Turbos - Stage 1 - MD516 & MD517 [650-675 bhp]

MD516 & MD517 Stage 1 Twin Hybrid Turbos feature:
• Specially modified high flow BorgWarner K24 Compressor Wheels featuring the latest extended tip techology
• Compressor cover profile re-profiled to suit larger compressor wheels
• Turbochargers fully blueprinted to motorsport standards
• Estimated Power Output: 650-675bhp*

MD516 & MD517 Twin Hybrid Turbochargers fit:

Porsche 911 GT2 (997) 3.6 litre 523 bhp, engine code 997 Top, year 2007 onwards, OEM number 99712307776
MD516 & MD517 turbos are a direct replacement for 5304-970-0080 & 5304-970-0081.

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.

MD516MD517
99712307776
5304-970-0080
5304-970-0081

The product you are viewing cross references to these numbers
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
PLEASE NOTE:
  • The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
  • Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
  • Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
  • All surcharges and exchanges are subject to our terms and conditions.  
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.

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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.

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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

DesignTek’s Stage 1 twin turbo upgrade service converts customer-supplied Porsche 993 911 GT2 turbochargers to MD435 & MD436 hybrid specifications. Complete turbochargers are not included.

How the Service Works

Provide your current turbocharger pair for the upgrade work. Alternatively, obtain new turbochargers separately and arrange their modification independently; buying those units does not include this service.

Fits

  • Platform reference: 993 (911) (1994–1998)
  • Model reference: 993 (911) GT2 1994–97
  • Porsche 911 (993) GT2, engine code 993USTGTR2, year 1995-1999, OEM number 99312301382

The platform dates, model dates and detailed turbo application differ. Verify the vehicle identification and fitted turbocharger references before commissioning modification. Check fitment for your specific vehicle (model, year, engine) before ordering.

What This Product Does

This is modification work on a supplied pair, rather than an outright turbocharger purchase. The Stage 1 specification involves changes to compressor wheels, matching housing profiles, turbine wheels and sealing components.

Functions

  • Applies MD435 & MD436 hybrid specifications to the supplied units.
  • Adapts compressor covers for the revised wheel profiles.
  • Modifies both turbochargers for paired installation.

Technical Details

  • Stage 1 hybrid references: MD435 & MD436.
  • Modified high-flow compressor wheels and correspondingly reprofiled compressor covers.
  • Modified, lightened exhaust turbine wheels.
  • Motorsport-specification blueprinting and twin piston-ring sealing.
  • Replacement references listed: 5316-970-6736 & 5316-970-6735.
  • Listed engine-output estimate: 600-650 bhp, subject to supporting modifications and suitable engine-management calibration.

These Hybrid Turbos must be fitted as a pair.

The output estimate is not a promise of results from modification alone. The complete engine configuration and its calibration determine the outcome.

Symptoms of Fault

Investigate blue exhaust smoke, unusual whining, rising oil consumption, slow boost build-up or erratic boost delivery before proceeding. Similar behaviour can arise from leaking hoses, restricted lubrication or boost-control faults, so symptoms alone do not establish turbocharger failure.

Why Replacement Matters

An upgrade is not a remedy for an unresolved mechanical problem. Have the existing units assessed and inspect their oil supply, return lines, intake connections and control hardware. Any underlying fault should be corrected, with calibration matched to the finished engine specification.

FAQs

  • Does the service provide a new turbocharger pair?
    No. The work is carried out on units you provide, whether existing or separately purchased.
  • Is modification included when buying new turbochargers?
    No. New-unit purchase and upgrade work are separate arrangements.
  • Is the stated output assured?
    No. The 600-650 bhp figure is an estimate dependent on the engine configuration, supporting hardware and calibration.


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

DesignTek Stage 2 twin turbo upgrade service for the Porsche 993 911 GT2, using the MD427 & MD428 hybrid specification. This is modification work on turbochargers you supply, not an outright pair of replacement turbos.

How the Service Works

Send your existing turbochargers for upgrading. Alternatively, purchase new turbochargers separately and arrange for those units to undergo the modification service.

Buying new turbochargers does not include the upgrade work. The turbocharger purchase and modification service must be arranged separately.

Fits

  • Porsche 993 911 GT2

The following fitment details are retained from the supplied record. Confirm their applicability to this GT2 modification service before arranging work.

  • 993 (911) (1994–1998)
  • 993 (911) TURBO 1994–96
  • 993 (911) TURBO S 1994–97
  • 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

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram: 202-16

What This Product Does

The service modifies the supplied twin turbochargers to the specified MD435 & MD436 Stage 1 hybrid configuration. It does not supply the donor turbochargers needed for the work.

Technical Details

  • Brand: DesignTek.
  • Service specification: Stage 1, MD435 & MD436.
  • Intended application: Porsche 993 911 GT2.
  • Supplied-record turbocharger references: 5316-970-6736, 5316-970-6735 and 5316-988-6736.
  • Supplied-record OE reference: 99312301352.

Installation Considerations

The hybrid units require installation as a pair. Engine-management settings and any supporting modifications must be appropriate to the complete engine specification; this service should not be treated as a remedy for an undiagnosed mechanical fault.

FAQs

Does this include two turbochargers?
No. You provide the units that will be modified.

Can newly purchased turbochargers be used?
Yes. Purchase the donor units separately, then arrange their upgrade work as a separate service.

Is modification included when buying new units?
No. Purchasing turbochargers alone does not include this Stage 1 upgrade service.



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

The DesignTek Stage 1 turbocharger upgrade service converts customer-supplied Porsche 993 911 GT2 turbochargers to MD422 & MD423 hybrid specification. No complete replacement turbochargers are included.

How the Service Works

Submit your existing turbochargers for modification. Alternatively, obtain new units independently and arrange their conversion as a separate service; purchasing turbochargers does not include upgrade work.

Fits

  • Porsche 993 911 GT2 — application specified for this upgrade service.
  • 993 (911) (1994–1998)
  • 993 (911) TURBO 1994–96
  • 993 (911) TURBO S 1994–97
  • 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

Turbo and Turbo S entries describe retained applications, not universal donor-unit suitability for this GT2 conversion. Confirm compatibility of both submitted turbochargers. The M64/60 entry provides no valid application year.

Diagram: 202-16, item 1

What This Product Does

This is a modification service applied to turbochargers supplied by the customer. The specified conversion is MD422 & MD423; it is neither an outright turbocharger pair nor an engine overhaul kit.

Functions

  • Converts submitted turbochargers to Stage 1 hybrid specification.
  • Accepts existing units or independently purchased new turbochargers, subject to compatibility checks.

Technical Details

  • Service specification: Stage 1 hybrid conversion, MD422 & MD423.
  • Historical designations MD435 & MD436 are retained for identification only and do not specify this conversion.
  • Recorded turbocharger references: 5316-970-6736, 5316-970-6735 and 5316-988-6736.
  • Recorded engine code: M64/60.
  • Internal assembly information identifies turbocharger 99312301452, note /R.
  • Historical output designation: 550-600 bhp. No verified output is established for this GT2 service.

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.

The retained horsepower note does not establish an output guarantee for this conversion.

Symptoms of Fault

Investigate unusual whining, exhaust smoke, increased oil consumption, delayed boost delivery or oil leakage before submitting units. These symptoms alone do not establish that turbocharger modification is appropriate.

Why Replacement Matters

An upgrade cannot correct an unresolved mechanical defect. Assess engine condition, oil supply, boost pipework and seals first, and review the engine-management requirements alongside any supporting modifications.

FAQs

Are complete turbochargers included?
No. You supply the units that undergo conversion.

Can newly purchased units be submitted?
Yes, subject to compatibility. Obtain them independently and arrange modification separately.

Which specification is requested?
MD422 & MD423. The historical MD435 & MD436 designations do not define this service.

Before ordering, confirm suitability against your vehicle's model, production year and engine specification.



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.

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
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