Turbo Chargers / Intercoolers & Parts
O-ring - 58.05 x 3.55 - for intercooler hose (sold individually).
Fits:
Porsche 95B-1 Macan S Petrol 2014-18 (x2 Required)
Porsche 95B-1 Macan GTS 2014-18 (x2 Required)
Porsche 95B-1 Macan Turbo 2014-18 (x2 Required)
Porsche 955 Cayenne Turbo 2003-06 (x2 Required)
Porsche 958-1 Cayenne S Diesel V8 2013-14 (x2 Required)
Porsche 958-2 Cayenne S Diesel V8 2015-18 (x2 Required)
Porsche 958-2 Cayenne S V6 2015-18 (x2 Required)
Porsche 958-2 Cayenne GTS V6 2015-18 (x2 Required)
Porsche 996 Turbo / GT2 2001-05 (x6 Required)
Porsche 997 Turbo / GT2 2007-13 (x4 Required)
Diagram ref. 20.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95511072100
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
- Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel 382HP 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
- Porsche 95B.1 Macan S Petrol 3.0L V6 340Bhp 2014-18
- Porsche 95B.1 Macan GTS Petrol 3.0L V6 360Bhp 2014-18
- Porsche 95B.1 Macan Turbo 3.6L V6 400Bhp 2014-18

To Fit:
Porsche 911 (996 Turbo), GT2 manual and auto 1999 to 2005
Significant advantages with do88's Porsche Performance Intercoolers & Silicone Hoses:
• Equivalent OEM numbers, 997.110.639.00, 997.110.640.00 (ref only)
• Core Volume: 6825 cm³ (4821 cm³), do88 41% larger!
• Lower post Intercooler Air Temperature at same conditions: OEM 50°C (122°F), do88 34°C (93°F)
• See enlarged images for test data results!
These Intercoolers are constructed to deliver the best cooling efficiency during tough conditions. Exclusively manufactured in aluminium with continuous welds, they guarantees reliability and endurance when you really need it. The increased core volume improves cooling efficiency and lowers the intake air temperature. Do88 have undergone thorough testing under severe and continuous conditions to ensure the absolute best performance! These Intercoolers are immensely optimized to allow the maximum core size in the given space without compromising on easy drop-in-fitment. This is the undoubted choice for the inspired enthusiast or the race car driver demanding reliability at the limit.
This package is supplied with everything you need for fitment, including Silicone Hoses, Screws, Brackets and Clamps.
The Boost Pressure Hoses included in this Kit are Silicone reinforced 4 ply polyester fabric for optimum airflow, performance and reliability!
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
ICM-200-996
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
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
The product you are viewing cross references to these numbers
- Porsche 996 GT2 2001-05

Fits:
Porsche 996 GT2, Turbo 2000-05
Click picture for large parts diagram.
Diagram Ref No 36.
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988

Fits:
Porsche 996 Turbo 2000-05
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9961106
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05


Fits:
Porsche 996 Turbo 2000-05
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9961106
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05

Fits:
Porsche 996 GT2 2001-05
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611098971
The product you are viewing cross references to these numbers
- Porsche 996 GT2 2001-05

Fits:
Porsche 996 GT2 2001-05
Click 'Zoom in' for large parts diagram.
Diagram Ref No 1.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611099071
The product you are viewing cross references to these numbers
- Porsche 996 GT2 2001-05

The intercoolers control the side to side flow design that flows along it's 16inch length. This IC will be more than sufficient for any highly tuned 996TTs or GT2s cars to applications of up to 900hp. 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 optimized to greatly increase air flow and reduce pressure drop which yields to improved efficiency. External aluminium surfaces are preserved with silver/grey protective coating.
The specifications:
- Dimensions Core Thickness: 3.5"
- Core Volume vs. Stock: 40% larger
- Performance Efficiency: 85%
- Flow rate: 620 CFM / side
- Leak Tested: @ 30 PSI
- Pressure Drop: less than 1%
Fits:
Porsche 996 Turbo 2000-05
Porsche 996 GT2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99611063000
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05


Fits:
Porsche 996 Turbo 2001-05
Porsche 997 Turbo 2007-09
Porsche 997 Turbo / GT2 RS 2010-13
Porsche 991 Turbo 2014-20
Porsche 992.1 Carrera 2019-24
Porsche 992.1 Turbo 2020>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 29
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAF008300
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 992.1 Carrera 2 3.0L 2019-24
- Porsche 992.1 Carrera 4 3.0L 2019-24
- Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 2S 3.0L 2019-24
- Porsche 992.1 Carrera 4S 3.0L 2019-24
- Porsche 992.1 Carrera 2S Cabriolet 3.0L 2019-24
- Porsche 992.1 Carrera 4S Cabriolet 3.0L 2019-24
- Porsche 992.1 Targa 4 3.0L 2020-24
- Porsche 992.1 Targa 4S 3.0L 2020-24
- Porsche 992.1 Speedster 4.0L 2019-24
- Porsche 992.1 Turbo 3.8L 2020-24
- Porsche 992.1 Turbo S 3.8L 2020-24
- Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
- Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24


Fits:
Porsche 996 Turbo / Turbo S 2001-05
*Please be advised, this part will not fit GT2 models. For a GT2, you must order 99650435391 (LEFT) and/or 99650435491 (RIGHT).
- 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) TURBO S 1994-97
- Porsche 996 TURBO 2000-05
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 996 TURBO 2000-05
- Porsche 996 GT2 2001-05


Fits:
Porsche 996 Turbo / 996 GT2 2001-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99612311
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05

These replacement actuators utilise the latest piston design to irradicate the failures often associated with diaphragm actuators and are supplied complete with brackets ready to install.
Please Note
This product is 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.
Yellow springs - 1 Bar = 9 - 15Psi
Blue springs - 1.2 Bar = 14 - 18Psi
Red springs - 1.4 Bar = 17.5 - 20Psi
Fit:
Porsche 996 Turbo
Porsche 996 GT2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99612300010
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
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.