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Turbo Chargers / Intercoolers & Parts

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DISPLAYING 1 to 8 (of 8 products)
99312391
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APPLICATIONS:- Porsche 993 GT2 - 3.6 Twin Turbo 1994-97

All units listed directly replace the standard KKK K24 Turbochargers,

Part No. 5324-970-7003 - Porsche Part No. 99312301482. R/H
Part No. 5324-970-7004 - Porsche Part No. 99312301382. L/H

STAGE 1 UPGRADE

These turbos are a direct installation in replacement of your factory turbos. K24 turbos are much larger then the factory K16 turbos found on the standard 993 GT2. The K24 Turbos can handle over 550 crank horsepower. Unlike most turbos on other vehicles, you will not sacrifice low end horsepower or torque, however gain a larger amount in the mid range and top end.

High flow Spec 5 blade compressor wheel - CNC re-profiled compressor housing - 360 degree thrust bearing - left & right hand thread shaft & wheel with cut back blades- twin high temperature exhaust piston ring seals fitted.

The prices listed are for turbo chargers supplied on an exchange basis. Your Turbo charger must be a serviceable unit. If required on an out right purchase (if you have no old unit available), please ask for quotation.

Output achieved 630 BHP & 890Nm Torque @ 4,500 Rpm & 1.1Bar Boost with the correct ECU re-map These set should only be fitted by engine builders or tuners as other performance parts may be required
96511120500/1
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Exhaust sealing ring turbo to catalytic converter. 
Price is for each



Fits:
Porsche 993 turbo - 1994 to 1997

Click 'Zoom in' for large parts diagram.
Diagram ref no 3



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96511120500
96411120500
96511120500

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Special Order item
99312311
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Heat shield for turbocharger.



Fits:
Porsche 993 Turbo 1994-98


Click 'Zoom in' for large parts diagram.
Diagram ref no 7



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99312311
99312311351
99312311451

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99310733KIT
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Oil return line set turbocharger. 
Sold as a pair

Fits:
Porsche 993 turbo - 1994 to 1997

Porsche 993 Turbo - oil pump to tank

Optimised shape to prevent backflow to the turbocharger oil tank. Manufactured in high quality stainless steel pipe, these oil lines prevent oil from flowing back to the turbocharger, which leads to excessive oil burning and smoking after long idle time

Diagram ref no 20 and 21

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99310733KIT
99310733853
99310733953
99310733981

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MD547MD548
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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.

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

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

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FMAC993
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These pair of replacement actuators, for the Porsche 993 Turbo , utilise the latest design to eradicate the failures often associated with the original actuators and are supplied complete with brackets ready to install. This product is assembled with springs suitable for at or slightly above factory boost levels.



This item comes with stock springs 5 psi (spool up) - 10 psi (running pressure) Green Springs product code FMAS049G. Additional springs are required for tuning to custom boost levels.

Fits:
Porsche 993 Turbo

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FMAC993
99312311550
99312311551

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99312301
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Units listed are direct replacement for the standard KKK K24 Turbochargers.

BorgWarner ref no 53249887003 / 53249887004.

Fits:
Porsche 993 GT2

REPLACEMENT
These turbos are a direct installation in replacement of your factory turbos.

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99312301
99312301382
53249887003
99312301482
53249887004

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MD435MD436
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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
DISPLAYING 1 to 8 (of 8 products)
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About Turbo Chargers / Intercoolers & Parts

Turbochargers, Intercoolers & Parts – Precision-Engineered Performance for Porsche Engines

A turbocharger increases your Porsche’s power and efficiency by forcing more air into the engine’s combustion chamber, while the intercooler cools that compressed air to improve performance and reliability. Together, these components deliver the exhilarating acceleration and responsiveness that define Porsche engineering.

At Design911, we offer a comprehensive selection of turbochargers, intercoolers, and related components for Porsche models old and new. Manufactured using high-grade materials and advanced balancing technology, our range ensures consistent boost pressure, superior cooling efficiency, and long-term durability under extreme conditions.

Whether you’re restoring a classic 911 Turbo, upgrading a Cayman for track use, or replacing worn components on a modern model, our high-quality turbo and intercooler parts guarantee unmatched performance and reliability.

What Do Turbochargers & Intercoolers Do?

Turbochargers and intercoolers work together to enhance engine power, efficiency, and response.

Core Functions:

  • Turbocharger: Compresses intake air to increase the engine’s air/fuel ratio, producing greater power.
  • Intercooler: Reduces the temperature of compressed air before it enters the engine, improving combustion and preventing knock.
  • Associated Parts: Turbo hoses, valves, clamps, and cooling lines maintain consistent boost pressure and reliable airflow.

Together, these systems optimise power delivery, throttle response, and engine longevity — key to achieving Porsche’s hallmark driving experience.

Why Do Turbochargers & Intercoolers Fail?

Turbo and intercooler systems operate under extreme temperatures and pressure. Over time, wear and heat cycling can cause performance degradation or failure.

Common Causes of Failure Include:

  • Oil contamination or starvation damaging the turbo bearings.
  • Boost leaks from worn seals, cracked hoses, or gaskets.
  • Intercooler clogging due to debris or oil residue.
  • Excessive exhaust temperatures leading to turbine damage.
  • Corrosion or heat fatigue from prolonged high-speed driving.

Symptoms of failure include whining noises, loss of power, blue or black exhaust smoke, poor boost response, or oil leaks around the turbo system. Addressing these early can prevent costly repairs and maintain performance.

Why Replace Components?

Replacing a worn turbocharger or intercooler with a precision-engineered, high-performance alternative restores full boost pressure, temperature control, and efficiency — ensuring your Porsche performs as intended.

Key Benefits:

  • Restores boost pressure and throttle response.
  • Improves air cooling and power delivery.
  • Prevents oil and boost leaks.
  • Constructed from lightweight, heat-resistant materials.
  • Direct-fit compatibility for Porsche 911, Cayman, Boxster, Macan, Panamera and more.
  • Ideal for performance upgrades, maintenance, or rebuilds.

High-quality turbo and intercooler components are essential for reliable, sustained performance in both road and track environments.

Highlights:

  • Turbochargers, intercoolers & related parts for Porsche models.
  • Precision-engineered to enhance airflow, boost, and cooling.
  • Heat-resistant construction ensures durability and performance.
  • Perfect for maintenance, upgrades, or complete rebuilds.
  • Supports Porsche 911, Cayman, Boxster, Panamera and more.
  • Optimised for performance and reliability under extreme load.

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