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Turbo Chargers / Intercoolers & Parts
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Price is for each

Fits:
Porsche 993 turbo - 1994 to 1997
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96511120500
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Fits:
Porsche 993 Turbo 1994-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99312311
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97

The Porsche 993 Turbo Internal Wastegate Actuator (IWG) provides better turbo response and greater sensitivity when managing boost pressures. Designed as a direct bolt-on replacement for the factory part, the Porsche IWG is easy to install and requires no special tools or fabrication. We've taken the proven technology from our WG38, 40 and 45mm External Wastegates and applied it to the Internal Wastegate Actuator.
Important legal notice (US)
WARNING - Proposition 65 Compliance Statement:
It is the responsibility of Turbosmart to warn its customers and employees that some products sold on this website contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
Important Emissions Note:
This product does not have a CARB EO #; it is not legal for sale or use in CA on pollution controlled motor vehicles. This is intended as a "Race Only" product to be used solely for competition. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization; any other use including recreational off-road use, may be a violation of local, state and federal laws. It is the buyer's responsibility to verify legal use of this product for the intended application and use.
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97

The Porsche 993 Turbo Internal Wastegate Actuator (IWG) provides better turbo response and greater sensitivity when managing boost pressures. Designed as a direct bolt-on replacement for the factory part, the Porsche IWG is easy to install and requires no special tools or fabrication. We've taken the proven technology from our WG38, 40 and 45mm External Wastegates and applied it to the Internal Wastegate Actuator.
Important legal notice (US)
WARNING - Proposition 65 Compliance Statement:
It is the responsibility of Turbosmart to warn its customers and employees that some products sold on this website contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
Important Emissions Note:
This product does not have a CARB EO #; it is not legal for sale or use in CA on pollution controlled motor vehicles. This is intended as a "Race Only" product to be used solely for competition. It's use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization; any other use including recreational off-road use, may be a violation of local, state and federal laws. It is the buyer's responsibility to verify legal use of this product for the intended application and use.
- Porsche 993 (911) TURBO 1994-96

Fits:
Porsche 993 Turbo 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99360611400
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96

Fits:
Porsche 993 Turbo 1995-98
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99360611400
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310733KIT
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
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
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
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
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 TURBO 2000-05

TTE650 upgrade turbocharger for Porsche 993 / 996
Product Highlights:
• Original BWTS turbocharger as base part
• Early response
• BWTS cast compressor 6+6 BLADE
• BWTS High-Flow clipped turbine
• BWTS Upgrade bearing pack
• Plug and Play installation
• 650 PS Capable
• Proven TheTurboEngineers quality
• Single parts finely balanced then components assembled and core high-speed VSR balanced
• Supplied with a balance test result document
• Made in Germany
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 TURBO 2000-05

TTE800 upgrade turbocharger for Porsche 993 / 996
Introducing our TTE800 upgrade performance turbochargers based on the original K24 turbochargers to new higher output specification. Offering an upgrade to over 800PS.
Engineered & Enhanced
At the core of our TTE800 upgrade stage is a much larger TTE compressor wheel, chosen because it is highly efficient and creates an extremely high flow for comparative size. Re-Profiled compressor cover to optimised tolerance to ensure maximum compressor efficiency is given.
We CNC mill the exhaust turbine housing to accept a larger 9 blade turbine and shaft.
Special profile 360 deg high-performance motorsport journal bearing is fitted, to remain durable at higher loads with no loss in transient response. The actuator used is sprung OE unit set at 0.8bar crack pressure(1.0bar if wanted)
Equilibrium:
Precisely balancing our turbochargers is a key critical factor to become a TTE upgrade unit as longevity and performance are paramount. Good balance improves acoustics also. Subsequent great care is taken with all TTE turbochargers to achieving our balance standards. Firstly parts are balanced at slow speeds up to 2800RPM in multiple planes using our single parts machine, then components are assembled and then the CHRA are dynamically balanced, but this time depending on application at up to 250,000 RPM in multiple planes using our in-house VSR machine to acquire the ultimate equilibrium, to a standard far higher than OEM. Each turbocharger is supplied with a serial numbered balance test result document.
• Original BorgWarner turbocharger as the base part
• TTE Billet geometry compressor 54.5MM inlet
• TTE 9 Blade High-Flow Low-Mass turbine
• TTE Upgrade bearing pack
• 800PS+ Capable on 102Ron
• Single parts finely balanced then components assembled and core high-speed VSR balanced
• Supplied with a balance test result document
• Proven TheTurboEngineers quality
• Made in Germany
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FMAC993
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
Blue springs - 1.2 Bar = 14 - 18Psi
Red springs - 1.4 Bar = 17.5 - 20Psi

Please note you would need to buy a pair as they are sold as EACH
The Replacement Actuators Part No. 99612300010 are assembled with Green springs - Standard Psi suitable for at or slightly above factory boost levels.
Additional springs are required for tuning to custom boost levels.
Fit:
Porsche 996 Turbo
Porsche 996 GT2
Porsche 993 Turbo
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FMAS049
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
Fits:
Porsche 993 Turbo
Click 'Zoom in' for large parts diagram.
Diagram ref no 14
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99312311551
The product you are viewing cross references to these numbers
- Porsche 993 (911) TURBO 1994-96
This Porsche Genuine OE Oil Collection Container is a factory-engineered component used within the turbocharger oil system of Porsche 993 Turbo models. Also referred to as an oil drip receiver or oil collector, this part is designed to manage and direct oil flow from the turbocharger assembly.
Fits:
Porsche 993 Turbo 1994 -1998
Diagram ref no 9
The oil collection container collects and channels engine oil draining from the turbocharger before it is returned to the engine lubrication system. This helps maintain proper oil circulation and prevents oil accumulation or leakage around the turbocharger components.
By managing oil flow efficiently, it plays an important role in protecting turbocharger components and maintaining overall engine lubrication performance.
Functions & Technical Role
• Oil collection: Captures oil draining from the turbocharger assembly
• Oil return management: Directs oil back into the lubrication system
• Leak prevention: Helps prevent oil pooling or leakage in the turbo area
• Thermal durability: Designed to withstand high temperatures from turbo operation
• OEM precision: Manufactured to Porsche specifications for exact fitment and reliability
Turbocharged engines rely on precise oil flow for lubrication and cooling. A faulty or damaged oil collection container can lead to:
• Oil leaks around the turbocharger
• Improper oil drainage
• Increased wear on turbo components
• Potential engine contamination
Replacing with a genuine Porsche OE component ensures correct oil management and long-term reliability of the turbo system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310712
The product you are viewing cross references to these numbers
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.