Turbo Chargers / Intercoolers & Parts

Turbocharger Actuator

This turbocharger actuator is designed for the Porsche 997 turbo generation models. The actuator plays a critical role in controlling turbo boost pressure by regulating the turbocharger’s variable geometry system

Fits:

• Porsche 997 MK1 TURBO 2007-09
• Porsche 997 MKII GT2 RS 2011-13

Diagram ref no 45

Modern turbo engines rely on precise boost control to deliver efficient performance, strong torque and optimal fuel economy. A failing turbo actuator can significantly affect engine performance and trigger warning lights or limp mode.

What the Turbocharger Actuator Does

The turbo actuator controls the position of the turbocharger vanes or wastegate mechanism. It adjusts the amount of exhaust gas flowing through the turbocharger to regulate boost pressure.

This allows the engine to:

• Deliver strong acceleration and torque
• Maintain efficient combustion and fuel economy
• Prevent excessive boost pressure that could damage engine components
• Provide smooth power delivery across the rev range

The actuator communicates with the engine control unit to constantly adjust turbo boost depending on engine load and driving conditions.

Why Turbo Actuators Fail

Turbo actuators operate in extremely harsh conditions near the turbocharger where high heat and constant movement are present. Over time this can cause internal components to wear or fail.

Common causes of failure include:

Electrical motor or sensor failure
The actuator contains electronic components that can fail due to heat exposure.

Carbon buildup in the turbo mechanism
Soot deposits can restrict the movement of turbo vanes, causing excessive strain on the actuator.

Internal gear wear
Mechanical wear inside the actuator can cause inaccurate positioning of the turbo vanes.

Heat damage
Prolonged exposure to turbocharger heat can degrade actuator components.

Symptoms of a Faulty Turbo Actuator

• Loss of engine power or poor acceleration
• Turbo boost errors or warning lights
• Engine entering limp mode
• Inconsistent turbo performance
• Fault codes relating to boost pressure control
• Increased fuel consumption

Replacing a faulty turbo actuator restores proper boost regulation and helps return the engine to its intended performance levels.

Why You May Need to Replace the Turbo Actuator

Restore Turbo Performance
A new actuator allows the turbocharger to operate correctly and deliver the expected engine power.

Prevent Engine Management Faults
Replacing a failing actuator can resolve boost control fault codes and warning lights.

Improve Fuel Efficiency
Proper turbo boost control helps the engine run efficiently and maintain optimal fuel consumption.

Avoid Further Turbocharger Damage
A malfunctioning actuator can place strain on the turbocharger mechanism if left unresolved. 

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

99760531

The product you are viewing cross references to these numbers

Turbocharger Actuator

This turbocharger actuator is designed for the Porsche 997 turbo generation models. The actuator plays a critical role in controlling turbo boost pressure by regulating the turbocharger’s variable geometry system

Fits:

• Porsche 997 MK1 TURBO 2007-09
• Porsche 997 MKII GT2 RS 2011-13

Diagram ref no 45

Modern turbo engines rely on precise boost control to deliver efficient performance, strong torque and optimal fuel economy. A failing turbo actuator can significantly affect engine performance and trigger warning lights or limp mode.

What the Turbocharger Actuator Does

The turbo actuator controls the position of the turbocharger vanes or wastegate mechanism. It adjusts the amount of exhaust gas flowing through the turbocharger to regulate boost pressure.

This allows the engine to:

• Deliver strong acceleration and torque
• Maintain efficient combustion and fuel economy
• Prevent excessive boost pressure that could damage engine components
• Provide smooth power delivery across the rev range

The actuator communicates with the engine control unit to constantly adjust turbo boost depending on engine load and driving conditions.

Why Turbo Actuators Fail

Turbo actuators operate in extremely harsh conditions near the turbocharger where high heat and constant movement are present. Over time this can cause internal components to wear or fail.

Common causes of failure include:

Electrical motor or sensor failure
The actuator contains electronic components that can fail due to heat exposure.

Carbon buildup in the turbo mechanism
Soot deposits can restrict the movement of turbo vanes, causing excessive strain on the actuator.

Internal gear wear
Mechanical wear inside the actuator can cause inaccurate positioning of the turbo vanes.

Heat damage
Prolonged exposure to turbocharger heat can degrade actuator components.

Symptoms of a Faulty Turbo Actuator

• Loss of engine power or poor acceleration
• Turbo boost errors or warning lights
• Engine entering limp mode
• Inconsistent turbo performance
• Fault codes relating to boost pressure control
• Increased fuel consumption

Replacing a faulty turbo actuator restores proper boost regulation and helps return the engine to its intended performance levels.

Why You May Need to Replace the Turbo Actuator

Restore Turbo Performance
A new actuator allows the turbocharger to operate correctly and deliver the expected engine power.

Prevent Engine Management Faults
Replacing a failing actuator can resolve boost control fault codes and warning lights.

Improve Fuel Efficiency
Proper turbo boost control helps the engine run efficiently and maintain optimal fuel consumption.

Avoid Further Turbocharger Damage
A malfunctioning actuator can place strain on the turbocharger mechanism if left unresolved. 

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

99760531

The product you are viewing cross references to these numbers

Air Duct. Satin Black.



Fits:
Porsche 997 GT2 2008>> I101

Click 'Zoom in' for large parts diagram.
Diagram ref no 12

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

99757547

The product you are viewing cross references to these numbers

Air Pressure Hose.
Upgrade or replace the high-pressure charge-air hose on your Porsche 911 (997-series) Turbo/GT2 with these genuine OEM components. The left/upper hose is Part 99711064403 and the right/upper one is Part 99711064503. These hoses carry compressed, cooled air from the intercooler outlet to the Y-pipe/intake manifold, ensuring your engine receives the designed boost volume. If you’ve experienced loss of power, hear hissing under load, or notice boost irregularities, these direct-fit Porsche parts restore the integrity of your forced induction system.

Fits:

• Porsche 997 MK1 TURBO 2007-09
• Porsche 997 MK1 GT2 2007-09

Diagram Ref No 4

What This Product Does:

• These hoses/pipes are part of the charge-air system (after the turbocharger) and connect components like the turbo(s) → intercooler(s) → intake manifold(s). They carry compressed air at elevated pressure and temperature.
• The purpose: When the turbo compresses intake air, it gets hot; after the intercooler it is cooled, then routed via these hoses to the engine. Secure, leak-free hoses ensure the engine receives correct volume and pressure of air.
• If the hose is compromised (e.g., leak, crack, split), then boost pressure drops, the engine may lose power, run richer/leaner, trigger fault codes, and the car’s performance degrades.

Symptoms & Signs You Might Need Replacement:

• Loss of boost / reduced power: If you’re not getting full boost, or turbo seems slower to build, a leak in this hose is a common fault.
  
• Hissing or whistling noise during acceleration (especially under load) — indicates air escaping from pressure side of the system.
  
• Check Engine Light / fault codes relating to boost pressure, turbocharger performance or intake air pressure.
  
• Visible damage or wear: cracks, splits, swelling, hose soft spots, or hose clamps loose or missing.
  
• Oil or dirt buildup around the hose connection points — may suggest a leaking pressure hose has allowed contaminants in.
  
  

Why Replacement Matters:

• Restores correct performance: For a turbocharged 911, accurate boost pressure and charge-air delivery are critical for performance. A failing hose disrupts that.
  
• Prevents further damage: A leaking charge air hose can lead to incorrect air/fuel mixture, cause lean conditions, increase exhaust temps, or stress the turbo/intercooler system.
  
• Safety & drivability: A compromised hose might fail catastrophically under boost, leading to a sudden loss of power, which could be dangerous in certain driving conditions.

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

99711064

The product you are viewing cross references to these numbers

Complete performance charge air high flow cooling kit with inlet pipes.
Full Big Pack including Inlet Hoses.



To fit:
Porsche 911 (997.1 Turbo) 2007-2009

This complete package includes Do88's motorsport grade intercooler package with carbon fibre air guides, high flow Y-pipe with all hoses and accessories for installation and the optional high flow inlet hoses.

The intercooler and y-pipe are great products individually but as a team they give great reduction of inlet air temperatures and at the same time they reduce the back pressure of the whole system; this means increased power!

Significant advantages with Do88's Porsche Performance Charge Air High Flow Kit:

• Cooler air to your engine! 38°C (52°C), do88 14°C lower than OEM parts!
• High quality high density UK made motorsport cores
• 3D freeform designed cast end tanks
• Custom designed carbon fibre ambient air guides
• Assembly air flow at 0,175bar/2,54psi pressure drop: 646CFM (564CFM), do88 15% higher!
• Post intercooler air temperature at same conditions: 38°C (52°C), do88 14°C lower!
• Y-pipe made of 70mm mandrel bent aluminium pipes
• Y-pipe smooth flow cast collector part
• Comes with high quality silicone hoses and accessories for installation
• See enlarged images for more information!

About the Intercoolers:

Do88: After our market research in the beginning of our intercooler development for the 997 generation 2 we understood that not many of the upgrade products on the market are really upgrades but more at the same level as the 997.2 standard intercoolers or sometimes even lower. For this reason we realised from the beginning we could not sacrifice anything to keep the cost down, we just had to do the best possible in the space available in the car!

First of all we carried out a lot of investigation and comparisons between different core types and at last really fell for a high density motorsport core which has great cooling efficiency as well as being light weight. With a great core in place we started to refine the end tank design which brought us to a decision to make cast end tanks as we could then control the air flow distribution over the core in a very precise way. This is very important as a good tank design will be beneficial for both pressure drop and cooling efficiency.

To be able to fit an intercooler with appropriate thickness for the job it was also necessary to design a new upper ambient air guide. This was designed in our 3D scanned environment from carbon fibre to ensure perfect fit to the vehicle integrated air guides and our intercooler. To achieve the best air flow distribution over the core we made intercooler end tanks with 70 mm (2 3/4 inch) connections which then made it necessary to designed custom silicone hoses for all positions.

The hoses are 3D designed with airflow in mind where we CFD tested each hose during development to ensure best possible flow rate of all parts! The hoses between turbocharger and intercooler are special silicone hoses that can withstand up to 240°C (464°F) continuous temperature! Another important aspect for cooling performance is to maximise all ambient cooling air available, to optimize this part we include air block rubber seals for all surfaces where the ambient air guides must seal properly.

With the way we have chosen to build our intercoolers the weight increase compared to the OEM ones is relatively small considering the size of our intercooler and that it's completely made of aluminium. Our intercooler weight is 5,85 kg (12,89 lb) per piece and the 997.2 OEM intercooler weights 3,30 kg (7,27 lb) per piece. It might sound like a big weight increase but not when you compare it to similar core sized intercoolers on the market!

About the Y-Pipe:

Do88: At the beginning of the development process of this product we spent a lot of time thinking what would be the preferred way to build a Y-pipe and here is the result of our conclusions and development process! Our pipe has both a very good flow rate and a low weight which is achieved by combining mandrel bent lightweight pipes with a high quality 3D freeform designed cast joint between them. Onto the cast part we then welded CNC-machined connections for bov and breather hoses.

This construction adds a lot of performance but only small amount of extra weight. Do88 Performance Y-pipe weight 1,52 kg (3,35 lb) OEM plastic pipe weight 1,38 kg (3,04 lb) and competitor cast performance pipe weight 2,76kg (6,08 lb)!

The pipes are then finished in a high quality powder coat that makes them look as good as they perform! You can choose between the more discrete semi gloss black and a fresh silver metallic finish.

About the Inlet Pipes:

Do88: It was a real challenge developing new turbo intake hoses for the 997.2 Turbo. The lack of space makes it really difficult to make a set of hoses that outflow the stock OEM plastic pipes. We achieved this and succeeded in maximising the performance but we had to make the small compromise of letting the hoses have no clearance; so they will push or rub in some non-sensitive areas. The hoses are reinforced with stainless steel wire to ensure overall durability and lasting performance.

Our self-developed intake hoses increase air flow; 26% higher than the OEM hoses. We can ensure you the sensation while driving is very different. The improvement in throttle response is immense, making the car feel so much more refined and alert. This upgrade makes it become what it should have been from the start. This is an improvement no test figures can explain, it has to be perceived behind the wheel of a 997 turbo!

Overall Performance:

Do88: When it comes to performance our big pack gives a great reduction of the intake temperature compared to the OEM 997.2 intercoolers and Y-pipe! See enlarged diagrams where we show data from our AIM racelogger recorded at 5 full throttle accelerations done in an immediate sequence without any cool down between 40-260 km/h (25-162 mph) in a Stage 1 tuned Porsche 997.2 Turbo PDK. In all tests the car was driven in Sport Plus, automatic gear change and AC off. First we made 5 runs with the car equipped with OEM intercooler and y-pipe then we switched to do88 performance intercoolers and y-pipe and drove car for a while, then we made 5 runs exactly the same as with the OEM parts. The temperatures are significant lower with our intercoolers which is visible in the graph!

As well as lower intake temperature our big pack also flows better than the 997.2 original intercoolers! See enlarged image showing the air flow rates at different pressure drops in the graph where we compared our big pack to the original intercooler and Y-pipe in our own Superflow SF-1020 Probench to verify the final result!

From our five in a row full throttle accelerations between 40-260 km/h (25-162 mph) we have very accurate and consistent test data for the range 50-250 km/h (31-155 mph). When analyzing the numbers, we found that in average we cut down the acceleration time for 50-250 km/h (31-155 mph) by 3 seconds compared to the OEM intercooler and y-pipe! No software programming or adaption reset was done in between the tests.

Please select your preferred Y-Pipe Colour from the options

Coolant supply line for the turbocharger. 

Fits:
Porsche 997-1 Turbo / GT2 2007-09 
Porsche 997-2 GT2 RS 2011-13

Diagram reference(s):

No. 11 - Cylinders 1-3
No. 12 - Cylinders 4-6

NOTE: Our product image shows 99710607379, which is for cylinders 1-3.

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

99710607

The product you are viewing cross references to these numbers

Intercooler bracket.



Fits:
Porsche 997.1 Turbo 2007-09
(not for GT2 models)

Click 'Zoom in' for large parts diagram.
Diagram ref no 23

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

99750425

The product you are viewing cross references to these numbers

Intercooler Pressure Hose.
Turbocharger 1-3 Cyl. LEFT.



Fits:
Porsche 997 Turbo / Turbo GT2 3.6L 2007-09
Porsche 997 Turbo 3.8L / Turbo S 3.8L 2010>>
Porsche 997 GT2RS 3.6L 2011

This product supersedes Porsche's old part numbers:
- 99711063101

Click picture for large parts diagram.
Diagram Ref No 2.

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

99711063102

The product you are viewing cross references to these numbers

Oil intake pipe for Turbo, Cylinders 1-3.


Fits:
Porsche 997 Turbo / GT2 2007-09
Porsche 997 GT2 RS 2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 17

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

99710732974

The product you are viewing cross references to these numbers

Oil intake pipe for Turbo, Cylinders 4-6.


Fits:
Porsche 997 Turbo / GT2 2007-09
Porsche 997 GT2 RS 2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 18

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

99710732873

The product you are viewing cross references to these numbers

Oil return line for turbo.


Fits:
Porsche 997 Turbo / GT2 2007-09
Porsche 997 GT2 RS 2011

Click 'Zoom in' for large parts diagram.
Diagram ref no 36

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

99710721673

The product you are viewing cross references to these numbers

O-ring seal - 50 x 2.5 - between the intake pipe and the turbocharger. 

Sold individually; x2 required per vehicle.

Fits:
Porsche 997 Turbo / GT2 / GT2 RS 2007-13
Porsche 991 Turbo / S 2014-20 - Excludes GT2 RS

Diagram ref. 19.

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

99970756441

The product you are viewing cross references to these numbers

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. 

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

95511072100

The product you are viewing cross references to these numbers

O-ring - 58.05 x 3.55 - for intercooler hose
OE Match intercooler pipe O-ring / round seal designed to provide a proper seal between intercooler pipes and fittings on Porsche turbocharged engines.
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.

The intercooler pipe O-ring sits between the mating surfaces of intercooler hoses, tubes, and connectors in the turbocharger charge air system. It prevents compressed air from leaking at these joints, ensuring that boost pressure flows efficiently from the turbocharger through the intercooler and into the engine. Maintaining a good seal here is essential for performance, responsiveness, and efficient engine operation under load.

Function
•  Seals intercooler hose connections: Prevents boost air leakage where pipes and connectors meet
•  Supports turbo efficiency: Helps maintain correct charge air pressure for optimal performance
•  Protects against pressure loss: Avoids reduced power and drivability issues from leaks
•  Durable elastomer: Designed to resist heat, pressure, and turbocharger system conditions

Intercooler pipe seals are small but critical to maintaining proper turbocharger performance. Over time, exposure to heat, pressure cycling, and engine bay contamination can cause original seals to:
•  Harden or become brittle
•  Distort or shrink
•  Leak compressed air at pipe joints
•  Reduce boost effectiveness

A leaking or degraded seal can result in loss of boost pressure, reduced engine power, slower acceleration, and poor throttle response. Replacing worn or damaged seals with quality OE Match units helps ensure a tight, leak-free joint and preserves the engineered performance of the turbocharger and intake system.

When to replace. Replace the intercooler pipe O-ring when:
•  You’re servicing intercooler hoses or charge air piping
•  You detect boost leaks (hissing during acceleration)
•  Engine performance feels reduced or inconsistent
•  Visual inspection shows the seal is brittle, cracked, or deformed
•  You’ve removed intercooler pipes and original seals were damaged

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

95511072100

The product you are viewing cross references to these numbers

Performance charge air high flow cooling kit.
Big pack without optional inlet hoses



To Fit:
Porsche 911 997.1 Turbo / Turbo S 2007 to 2009

This comprehensive package includes Do88's motorsport grade intercooler package with carbon fibre air guides and high flow Y-pipe with all hoses and accessories for installation.

The intercooler and y-pipe are great products individually but as a team they give great reduction of inlet air temperatures and at the same time they reduce the back pressure of the whole system; this means increased power!

Significant advantages with Do88's Porsche Performance Charge Air High Flow Kit:

• Cooler air to your engine! 38°C (52°C), do88 14°C lower than OEM parts!
• High quality high density UK made motorsport cores
• 3D freeform designed cast end tanks
• Custom designed carbon fibre ambient air guides
• Assembly air flow at 0,175bar/2,54psi pressure drop: 646CFM (564CFM), do88 15% higher!
• Post intercooler air temperature at same conditions: 38°C (52°C), do88 14°C lower!
• Y-pipe made of 70mm mandrel bent aluminium pipes
• Y-pipe smooth flow cast collector part
• Comes with high quality silicone hoses and accessories for installation
• See enlarged images for more information!

About the intercoolers:

Do88: After our market research in the beginning of our intercooler development for the 997 generation 2 we understood that not many of the upgrade products on the market are really upgrades but more at the same level as the 997.2 standard intercoolers or sometimes even lower. For this reason we realised from the beginning we could not sacrifice anything to keep the cost down, we just had to do the best possible in the space available in the car!

First of all we carried out a lot of investigation and comparisons between different core types and at last really fell for a high density motorsport core which has great cooling efficiency as well as being light weight. With a great core in place we started to refine the end tank design which brought us to a decision to make cast end tanks as we could then control the air flow distribution over the core in a very precise way. This is very important as a good tank design will be beneficial for both pressure drop and cooling efficiency.

To be able to fit an intercooler with appropriate thickness for the job it was also necessary to design a new upper ambient air guide. This was designed in our 3D scanned environment from carbon fibre to ensure perfect fit to the vehicle integrated air guides and our intercooler. To achieve the best air flow distribution over the core we made intercooler end tanks with 70 mm (2 3/4 inch) connections which then made it necessary to designed custom silicone hoses for all positions.

The hoses are 3D designed with airflow in mind where we CFD tested each hose during development to ensure best possible flow rate of all parts! The hoses between turbocharger and intercooler are special silicone hoses that can withstand up to 240°C (464°F) continuous temperature! Another important aspect for cooling performance is to maximise all ambient cooling air available, to optimize this part we include air block rubber seals for all surfaces where the ambient air guides must seal properly.

With the way we have chosen to build our intercoolers the weight increase compared to the OEM ones is relatively small considering the size of our intercooler and that it's completely made of aluminium. Our intercooler weight is 5,85 kg (12,89 lb) per piece and the 997.2 OEM intercooler weights 3,30 kg (7,27 lb) per piece. It might sound like a big weight increase but not when you compare it to similar core sized intercoolers on the market!

About the Y-Pipe:

Do88: At the beginning of the development process of this product we spent a lot of time thinking what would be the preferred way to build a Y-pipe and here is the result of our conclusions and development process! Our pipe has both a very good flow rate and a low weight which is achieved by combining mandrel bent lightweight pipes with a high quality 3D freeform designed cast joint between them. Onto the cast part we then welded CNC-machined connections for bov and breather hoses.

This construction adds a lot of performance but only small amount of extra weight. Do88 Performance Y-pipe weight 1,52 kg (3,35 lb) OEM plastic pipe weight 1,38 kg (3,04 lb) and competitor cast performance pipe weight 2,76kg (6,08 lb)!

The pipes are then finished in a high quality powder coat that makes them look as good as they perform! You can choose between the more discrete semi gloss black and a fresh silver metallic finish.

Overall Performance:

When it comes to performance our big pack gives a great reduction of the intake temperature compared to the OEM 997.2 intercoolers and Y-pipe! See enlarged diagrams where we show data from our AIM racelogger recorded at 5 full throttle accelerations done in an immediate sequence without any cool down between 40-260 km/h (25-162 mph) in a Stage 1 tuned Porsche 997.2 Turbo PDK. In all tests the car was driven in Sport Plus, automatic gear change and AC off. First we made 5 runs with the car equipped with OEM intercooler and y-pipe then we switched to do88 performance intercoolers and y-pipe and drove car for a while, then we made 5 runs exactly the same as with the OEM parts. The temperatures are significant lower with our intercoolers which is visible in the graph!

As well as lower intake temperature our big pack also flows better than the 997.2 original intercoolers! See enlarged image showing the air flow rates at different pressure drops in the graph where we compared our big pack to the original intercooler and Y-pipe in our own Superflow SF-1020 Probench to verify the final result!

From our five in a row full throttle accelerations between 40-260 km/h (25-162 mph) we have very accurate and consistent test data for the range 50-250 km/h (31-155 mph). When analyzing the numbers, we found that in average we cut down the acceleration time for 50-250 km/h (31-155 mph) by 3 seconds compared to the OEM intercooler and y-pipe! No software programming or adaption reset was done in between the tests.

Performance intercooler upgrade kit.



To Fit:
Porsche 911 997.1 Turbo 2007-2009 and GT2RS models
Porsche 911 997.2 GT2 RS model 2010 to 2012
Porsche 911 997.2 Turbo 2010 to 2012

A true performance upgrade intercooler kit for the 997.1 Turbo and GT2. This well thought out refined kit allows fitment of the larger later type 997.2 intercoolers onto the 997.1 model, and includes all the components and hardware necessary for a serious upgrade!

Significant advantages with Do88's Porsche Performance Intercooler Kit:

• Cooler air to your engine!
• High quality, high density UK made motorsport cores.
• 3D freeform designed cast end tanks.
• Custom designed carbon fibre ambient air guides.
• Comes with high quality silicone hoses and accessories for installation.
• See enlarged images for more information!

Do88: After our market research in the beginning of our intercooler development for the 997 generation 2 we understood that not many of the upgrade products on the market are really upgrades but more at the same level as the 997.2 standard intercoolers or sometimes even lower. For this reason we realised from the beginning we could not sacrifice anything to keep the cost down, we just had to do the best possible in the space available in the car!

First of all we carried out a lot of investigation and comparisons between different core types and at last really fell for a high density motorsport core which has great cooling efficiency as well as being light weight. With a great core in place we started to refine the end tank design which brought us to a decision to make cast end tanks as we could then control the air flow distribution over the core in a very precise way. This is very important as a good tank design will be beneficial for both pressure drop and cooling efficiency.

To be able to fit an intercooler with appropriate thickness for the job it was also necessary to design a new upper ambient air guide. This was designed in our 3D scanned environment from carbon fibre to ensure perfect fit to the vehicle integrated air guides and our intercooler. To achieve the best air flow distribution over the core we made intercooler end tanks with 70 mm (2 3/4 inch) connections which then made it necessary to designed custom silicone hoses for all positions.

The hoses are 3D designed with airflow in mind where we CFD tested each hose during development to ensure best possible flow rate of all parts! The hoses between turbocharger and intercooler are special silicone hoses that can withstand up to 240°C (464°F) continuous temperature! Another important aspect for cooling performance is to maximise all ambient cooling air available, to optimise this part we include air block rubber seals for all surfaces where the ambient air guides must seal properly.

With the way we have chosen to build our intercoolers the weight increase compared to the OEM ones is relatively small considering the size of our intercooler and that it's completely made of aluminium. Our intercooler weight is 5,85 kg (12,89 lb) per piece and the 997.2 OEM intercooler weights 3,30 kg (7,27 lb) per piece. It might sound like a big weight increase but not when you compare it to similar core sized intercoolers on the market!

Included in this kit:

• Performance intercoolers
• Carbon fibre air guides
• Silicone hoses
• Hose clamps
• Rubber seals
• Installation hardware

When it comes to performance our intercooler kit gives a great reduction of the intake temperature compared to the OEM 997.2 intercoolers! See enlarged diagrams where we show data from our AIM racelogger recorded at 5 full throttle accelerations done in an immediate sequence without any cool down between 40-260 km/h (25-162 mph) in a Stage 1 tuned Porsche 997.2 Turbo PDK. In all tests the car was driven in Sport Plus, automatic gear change and AC off. First we made 5 runs with the car equipped with OEM intercooler and y-pipe then we switched to do88 performance intercoolers and y-pipe and drove car for a while, then we made 5 runs exactly the same as with the OEM parts. The temperatures are significant lower with our intercoolers which is visible in the graph!

As well as lower intake temperature our big pack also flows better than the 997.2 original intercoolers! See enlarged image showing the air flow rates at different pressure drops in the graph where we compared our big pack to the original intercooler and Y-pipe in our own Superflow SF-1020 Probench to verify the final result!

From our five in a row full throttle accelerations between 40-260 km/h (25-162 mph) we have very accurate and consistent test data for the range 50-250 km/h (31-155 mph). When analyzing the numbers, we found that in average we cut down the acceleration time for 50-250 km/h (31-155 mph) by 3 seconds compared to the OEM intercooler and y-pipe! No software programming or adaption reset was done in between the tests.

Please select which Y-Pipe you intend to install this intercooler kit with from the options.