DO88

Performance intercoolers.



To Fit:
Porsche 991 Turbo and Turbo S 2013 onwards

A true performance upgrade intercooler for the 991 Turbo / Turbo S

This is the most refined of all products we carry today!

• Significantly improved Air flow! (see graph images).
• Cooler air to your engine!
• High quality high density UK made motorsport cores.
• 3D freeform designed cast end tanks
• Custom designed carbon fiber ambient air guides.
• Comes with high quality silicone hoses and accessories for installation.

From do88: Right from the beginning we realised that 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 made a lot of investigation and comparisons between different core types and at last really fell for a high density motorsport core which have great cooling efficiency along with a low 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 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 design 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 are to use 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.

Using this design in building our intercoolers the weight increase compared to the OEM ones is relatively small considering the size of our intercooler and that its all made of aluminium. Our intercooler weight is 5,4 kg (11,9 lb) per piece and the 991 OEM intercooler weights 3,1 kg (6,8 lb) per piece. It might sound like a big weight increase but compared to other actors on the market with intercoolers in this size it's a low weight!

At the same time as our intercoolers lower the intake temperature, they also flow better than the 991 original intercoolers! Please have a look at the air flow rates at different pressure drops in the graph below where we compared our intercooler with hoses to the original intercooler with hoses in our own Superflow SF-1020 Probench to verify the final result!

Keep in mind that the OEM intercoolers was designed for only the power level the car was built for originally. A power increase may cause your stock intercoolers to not be efficient enough. So even on an engine with a software tune only or using your car in hot climate the do88 performance intercooler kit will give a performance increase over the OEM intercoolers!

This do88 performance intercooler kit comes as a complete package with all parts necessary for installation.

Please Note! Some modifications need to be done when installing this intercooler kit, please read step 29,31 & 35 in the installation guide before placing order.

Installation Instruction

For maximum performance, and easier installation, this kit can be combined with our do88 inlet hoses!

Included parts in this kit:

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

When you order this kit, there is one choice that has to be made: Y-Pipe: Please Select which Y-Pipe you have on your car. OEM or do88 Performance.

Equivalent Porsche OEM part numbers 99111063972, 99111063973, 99111064072, 99111064073 (for cross reference only)

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

ICM-270

The product you are viewing cross references to these numbers

do88 Performance inlet plenum.



To fit:
Porsche 991 Turbo and Turbo S from 2013 onwards

do88 are proud to present our newly developed Inlet Plenum for the Porsche 991 Turbo and Turbo S

With this high flow Plenum, the performance of your 991 will increase!

• do88 plenum is Y-shaped for improved air flow. • Our plenum flows 5,4% better compared with the OEM plenum (IPD aftermarket 2,1%) (see graph image)
• High quality casting pipe with CNC-machined connections
• Smooth internal surface for best air flow
• Comes with all necessary accessories for installation.

The OEM 991 Turbo plenum is T-shaped which means the air flow from the throttle body abruptly change direction when it´s divided to each side of the intake manifolds. It makes sense to design a plenum with a Y-shape instead of a "bank into the wall" flat T-shape. During the development process of this plenum we spent a lot of time with flow simulations of the internal Y-shape design. We made both flow simulations on our CAD system and real tests on our own SuperFlow SF-1020 flow bench using 3D-printed models.

To be able to manufacture this final design we choose to make a 3D freeform designed casting. This construction adds a lot of performance but not so much of extra weight. We designed the outside of the plenum to add as little weight as possible to the plenum.

do88 Performance Plenum weight 0,66 kg (1,46 lb) OEM plastic pipe weight 0,27 kg (0,60 lb) and competitor cast performance pipe (IPD) weight 1,13kg (2,49 lb)!

Be aware that the OEM parts were designed for the power level the car was built for originally. A power increase may cause your stock plenum to hold back the power of your engine. So even on an engine with a software tune only the do88 performance plenum will give a performance increase!

do88 performance plenum comes as a complete package with all parts necessary for installation.

Equivalent Porsche part numbers 9A111003770, 9A211003702, 9A211013702 (for cross reference only).

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

TR-210-991

The product you are viewing cross references to these numbers

Performance inlet hose kit.

To fit:
Porsche 991 Turbo and Turbo S from 2013 onwards
Fits both generation 1 and 2 models

do88 proudly presents the worlds first high flowing turbo inlet hoses for Porsche 991.1 / 991.2 Turbo. Self developed by do88 in Sweden !

• Much larger overall inner diameter for improved air flow, 31 % higher! (see graph diagram ). The hoses have a 2,5 inch (63mm) inner diameter at the narrowest location.
• Smooth flow transitions.
• Very smooth internal surface for best air flow.
• Excellent thermal properties, the hoses will not absorb heat from the engine.
• The hoses are reinforced with stainless steel wire to eliminate the risk of implosion on high out-takes.

It was a real challenge developing new turbo intake hoses for the 991 Turbo. The lack of space made it really difficult to make a set of hoses that would outflow the stock plastic pipes. We succeeded but in some smaller areas we had to compromise and allow these hoses to have no clearance, so they will push or rub in some non-sensitive areas.

Porsche 911 turbo. This immortal icon. The absolute essence of the motorworld´s cars, the Porsche 911, elevated by ten – applied with turbo charging. Could it get any better for a car enthusiast?

Owning a Porsche implicates more than just owning a car. A Porsche is a Porsche. You find yourself travelling in the true definition of immortality, feeling ever so alive. Owning a Porsche is all about enjoying every single detail there is to it. Everything ought to be as optimised and as refined as possible.

This is where do88 fit in. Our self-developed intake hoses increase air flow with 31 %. 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 991 turbo!

The package includes everything for mounting:
• 2 wire-reinforced silicone hoses
• 2 silicone hoses
• 2 breather valves
• 2 CNC machined VTG adapters
• Clamps and Screws

This product is available in 2 options, OEM Porsche turbos or with 51.5mm turbo adapters for cars where the compressor wheel has been replaced, and compressor housing machined larger.
Please select your turbo type below.

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

KIT179

The product you are viewing cross references to these numbers

Inlet plenum replacement O-ring.



To Fit:
Porsche 991 Turbo and Turbo S from 2013 onwards *** using the do88 TR-210-991 Inlet Plenum

Replacement O ring, required if you are disconnecting the inlet plenum whilst maintaining your car to provide a good seal and prevent air leaks.

Extreme high flow performance Y-Pipe.



To Fit:
Porsche 997.2 Turbo models 2010 to 2012

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; here is the result of our conclusions and development process!

Significant advantages with Do88's Y-pipe compared to the OEM pipe:

• Much larger inner diameter for improved air flow, do88 62% higher!
• 70mm mandrel bent aluminium pipes.
• Smooth flow cast collector part.
• Smooth internal surface for best air flow.
• Comes with high quality silicone hoses and accessories for installation.
• See enlarged images for more information!

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 a competitors 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.

The kit also includes 2 high quality custom designed silicone hoses which are available in two different versions. Which version you need depends on if you will install the Y-pipe together with the OEM intercoolers or the do88 performance intercoolers.

When it comes to air flow performance our Y-pipe totally outperforms the OEM Y-pipe by 62% increased flow at the same pressure drop! On our final tests of this Y-pipe together with our intercoolers on a Stage 1 tuned 997.2 Turbo PDK we measured a great performance increase. In all tests the car was driven in Sport Plus, automatic gear change and AC off. From our five in a row full throttle accelerations between 40-270 km/h (25-168 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 we cut down the acceleration time for 50-250 km/h (31-155 mph) by 3 seconds!

Included parts in this kit:

• Full aluminium performance Y-pipe
• Silicone hoses
• Hose clamps
• Hose adaptors if the Y-pipe will be installed together with OEM intercoolers

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



To fit:
Porsche 911 (997.2 Turbo) 2010 to 2012

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

Performance charge air high flow cooling kit..
Big Pack without optional Inlet Hoses.



To fit:
Porsche 911 (997.2 Turbo) 2010 to 2012

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!

empty
Performance Charge Air High Flow Cooling Kit

To Fit: Porsche 911 (997.2 Turbo) 2010 to 2012

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.

High flowing turbo inlet hose kit



To Fits:
Porsche 911 997.2 Turbo 2010 to 2015 with 6-Speed / PDK gearbox.

Significant advantages with Do88's high flowing turbo inlet pipes:

• Much larger overall inner diameter for improved air flow, do88's is 26% higher!
•The hose has 2.5 inch (63mm) internal diameter at the smallest location.
•Smooth flow transitions and very smooth internal surfaces for best possible air flow.
•Excellent thermal properties, the hoses will not absorb heat from the engine.
•The hoses are reinforced with stainless steel wire to eliminate the risk of collapse on high engine output!
•See enlarged images for more information.

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!

Included in the kit:

• 2 x Wire reinforced silicone hoses
• 2 x CNC machined VTG adaptors
• All hardware for installtion!

Performance inlet plenum.



To Fit:
Porsche 997 Turbo and Turbo S from 2010-2012

do88 are proud to present our newly developed Inlet Plenum for the Porsche 991 Turbo and Turbo S

With this high flow Plenum, the performance of your 991 will increase!

• do88 plenum is Y-shaped for improved air flow. • Our plenum flows 5,4% better compared with the OEM plenum (IPD aftermarket 2,1%) (see graph image)
• High quality casting pipe with CNC-machined connections
• Smooth internal surface for best air flow
• Comes with all necessary accessories for installation.

The OEM 997.2 Turbo plenum is T-shaped which means the air flow from the throttle body abruptly change direction when it´s divided to each side of the intake manifolds. It makes sense to design a plenum with a Y-shape instead of a "bank into the wall" flat T-shape. During the development process of this plenum we spent a lot of time with flow simulations of the internal Y-shape design. We made both flow simulations on our CAD system and real tests on our own SuperFlow SF-1020 flow bench using 3D-printed models.

To be able to manufacture this final design we choose to make a 3D freeform designed casting. This construction adds a lot of performance but not so much of extra weight. We designed the outside of the plenum to add as little weight as possible to the plenum.

do88 Performance Plenum weight 0,66 kg (1,46 lb) OEM plastic pipe weight 0,27 kg (0,60 lb) and competitor cast performance pipe (IPD) weight 1,13kg (2,49 lb)!

Be aware that the OEM parts were designed for the power level the car was built for originally. A power increase may cause your stock plenum to hold back the power of your engine. So even on an engine with a software tune only the do88 performance plenum will give a performance increase!

do88 performance plenum comes as a complete package with all parts necessary for installation.

Equivalent Porsche part numbers 9A111003770, 9A211003702, 9A211013702 (for cross reference only).

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

TR-210-997

The product you are viewing cross references to these numbers

Inlet plenum replacement O-ring.



To Fit:
Porsche 997.2 Turbo and Turbo S 2010-2012
*using the do88 TR-210 Inlet Plenum

Replacement O ring, required if you are disconnecting the inlet plenum whilst maintaining your car to provide a good seal and prevent air leaks.

Performance intercoolers & pressure hoses.



To Fits:
Porsche 911 997.1 Turbo and GT2. Fits both manual and auto 2007 to 2009 (phase 1)


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!

Please note: This is a special-order item, once ordered cannot be cancelled.

High flowing turbo inlet hose kit



To Fits:
Porsche 911.1 Turbo & GT2 2007 to 2009, H6 Twin Turbo (473hp, 523hp) Tiptronic or 6 Speed Manual

Significant advantages with do88's Porsche Performance Silicone Hoses:

• Silicone rubber reinforced with 4 layer polyester fabric
• These Hoses have a much larger overall inner diameter for improved air flow!
• Smooth flow transitions!
• Excellent thermal properties, these Hoses will not absorb heat from the engine!
• The Hoses are reinforced with stainless steel wire which eliminates risk of implosion on such a high powered engine!
• Inner layer of Fluorosilicone rubber to extend the chemical resistance of the Hose!

This Do88 Silicone Hose Kit includes everything you need for installation;
• 2 x Wire-reinforced Silicone Hoses,
• CNC machined VTG adaptors,
• Stainless Steel Clamps
• CNC machine air port.

DO88 Inlet plenum - GT3 Retrofit kit.



To fit:
Porsche 997.1 Turbo models 2007-2009, using the DO88 TR-150 OEM throttle body

This conversion kit allows customers already using our 997.1 DO88 throttle body in the OEM 74mm size to purchase the fittings to upgrade to using a larger GT3 82mm throttle body.

Includes all parts that are different between the OEM and GT3 size kits.

• Larger silicone hose
• 4 fixing bolts
• Replacement seal
• New hose clips

When making this conversion, the oem size spacer plate is no longer used.

DO88 Inlet Plenum OEM version 74mm



To fit:
Porsche 997.1 Turbo models 2007-2009, using a OEM 74mm throttle body

DO88 are proud to present our newly developed Plenum for the Porsche 997.1 Turbos.

With this extreme high flow Plenum, the performance of your 997 generation 1 will increase! - The results of the final design were very impressive as the do88 Plenum totally outperformed the Porsche OEM Plenum by 34% increased flow when used in combination with a GT3 82mm throttle body at the same pressure drop!

• Available for OEM (74mm) and GT3 (82mm) throttle body
• do88 plenum is Y-shaped for improved air flow.
• High quality casting pipe with CNC-machined connections
• Smooth internal surface for best air flow
• Comes with all necessary accessories for installation

The OEM 997 Turbo plenum is T-shaped which means the air flow from the throttle body abruptly changes direction as it is divided to each side of the intake manifolds. It makes sense to design a plenum with a Y-shape instead of a "direct stop into the wall" T-shape. During the development process of this plenum we spent a lot of time with flow simulations of the internal Y-shape design. We made both flow simulations on our CAD system and real tests on our own SuperFlow SF-1020 flow bench on 3D-printed models. To be able to manufacture this final design we choose to make a 3D freeform designed casting. This construction adds a lot of performance but not so much of extra weight. We designed the outside of the plenum to add as little weight as possible overall.

1. do88 Performance Plenum weight is 0,80 kg (1,76 lb) OEM plastic pipe weight 0,28 kg (0,62 lb) and a competitor's cast performance pipe weighed 1,19kg (2,63 lb).
2. The DO88 plenum flows 34% better for GT3 throttle body and 18% better for OEM throttle body compared with the OEM plenum (see diagram below).

The do88 Performance Plenum is straight bolt on when used with the 82mm OEM Porsche 997 GT3 throttle body, but you can also purchase this plenum together with a CNC-machined adaptor plate that allows you to install it with the oem 74mm OEM Porsche 997.1 Turbo throttle body.

Be aware of that the OEM parts were only designed for the power level the car was built for originally. A power increase may cause your stock plenum to hold back the power of your engine, so even on an engine with a software tune the do88 performance plenum will give a performance increase!

do88 performance plenum comes as a complete package with all parts necessary for installation.

When you order this kit, there is one choice that must be made:

Throttle body size: for OEM 74mm or GT3 82mm.

Please note, their is not any throttle body included in this kit.

DO88 Inlet Plenum GT3 version - 82mm



To fit:
Porsche 997.1 Turbo models 2007-2009, using an upgrade GT3 82mm throttle body


DO88 are proud to present our newly developed Plenum for the Porsche 997.1 Turbos.

With this extreme high flow Plenum, the performance of your 997 generation 1 will increase! - The results of the final design were very impressive as the do88 Plenum totally outperformed the Porsche OEM Plenum by 34% increased flow when used in combination with a GT3 82mm throttle body at the same pressure drop!

• Available for OEM (74mm) and GT3 (82mm) throttle body
• do88 plenum is Y-shaped for improved air flow.
• High quality casting pipe with CNC-machined connections
• Smooth internal surface for best air flow
• Comes with all necessary accessories for installation

The OEM 997 Turbo plenum is T-shaped which means the air flow from the throttle body abruptly changes direction as it is divided to each side of the intake manifolds. It makes sense to design a plenum with a Y-shape instead of a "direct stop into the wall" T-shape. During the development process of this plenum we spent a lot of time with flow simulations of the internal Y-shape design. We made both flow simulations on our CAD system and real tests on our own SuperFlow SF-1020 flow bench on 3D-printed models. To be able to manufacture this final design we choose to make a 3D freeform designed casting. This construction adds a lot of performance but not so much of extra weight. We designed the outside of the plenum to add as little weight as possible overall.

1. do88 Performance Plenum weight is 0,80 kg (1,76 lb) OEM plastic pipe weight 0,28 kg (0,62 lb) and a competitor's cast performance pipe weighed 1,19kg (2,63 lb).
2. The DO88 plenum flows 34% better for GT3 throttle body and 18% better for OEM throttle body compared with the OEM plenum (see diagram below).

The do88 Performance Plenum is straight bolt on when used with the 82mm OEM Porsche 997 GT3 throttle body, but you can also purchase this plenum together with a CNC-machined adaptor plate that allows you to install it with the oem 74mm OEM Porsche 997.1 Turbo throttle body.

Be aware of that the OEM parts were only designed for the power level the car was built for originally. A power increase may cause your stock plenum to hold back the power of your engine, so even on an engine with a software tune the do88 performance plenum will give a performance increase!

do88 performance plenum comes as a complete package with all parts necessary for installation.

When you order this kit, there is one choice that must be made:

Throttle body size: for OEM 74mm or GT3 82mm.

Please note, their is not any throttle body included in this kit.

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.