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Turbo Chargers / Intercoolers & Parts

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DISPLAYING 1 to 16 (of 54 products)
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8166KIT
Product Information
Product Information

Intercooler and Pressure Pipe Kit – Complete Charge Air System Solution

This complete intercooler and pressure pipe kit is designed for Porsche 991.2 GT2 RS models. It provides a comprehensive replacement solution for the entire charge air system, including both intercoolers, two pressure pipes and a throttle body to intercooler seal.

Fits:

  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19       

Modern turbocharged Porsche engines rely on a highly efficient and sealed intake system to deliver performance. Over time, components such as intercoolers, plastic pressure pipes and rubber connectors can degrade, leading to boost leaks, reduced cooling efficiency and loss of power. This complete kit replaces all key components in one package to restore performance and reliability.

What This Intercooler & Pressure Pipe Kit Does

The charge air system compresses air via the turbochargers, cools it through intercoolers and delivers it into the engine for combustion.

This kit ensures:

• Efficient cooling of compressed air via both intercoolers
• Consistent and leak-free boost pressure across all pipe connections
• Proper airflow from turbochargers to intake system
• Reduced intake temperatures for improved combustion efficiency
• Reliable sealing and mounting across the entire system

Replacing the full system helps maintain optimal turbo performance and engine efficiency.

What Is Included in the Kit

• 2 x Intercooler 
• 2 x Intercoolers Pressure Hose Upper (left and right)
• 2 x Intercooler Pressure Hose Lower (left and right)
• 2 x Intercooler to Cut off Valve Pressure Pipe

This complete set replaces all major airflow and connection components within the turbo intake system

CSF High Performance GT2 RS Intercooler Specification:

• Numbers of Tubes = 28
• Tube Height = 3mm Rolled Tube
• Fin Height = 4.85mm
• Weight = 8.146KG
• Billet End Tanks with TIG Welding

The CSF High-Performance Intercoolers for the GT2 RS boasts 13 more cooling rows than the stock intercooler, boasting 28 rows in total vs. the stock 15. The tube height and fin height is also maximised with the CSF core boasting a dual-row 3mm rolled tube vs. the factory 7mm height and the CSF core uses a fin height of 4.85mm vs. the factory 7mm. As you can see, the CSF core maximises performance in every area.

Why Intercooler and Boost System Components Fail

Turbocharged systems operate under high pressure and extreme temperatures, which leads to wear across multiple components.

Common issues include:

  • Cracked or weakened pressure pipes - Pipes can split or degrade over time due to heat and pressure.
  • Boost leaks at joints and seals - Connections and sealing surfaces can wear, causing pressure loss.
  • Intercooler efficiency loss - Internal contamination or ageing reduces cooling effectiveness.
  • Rubber adaptor wear - Rubber components can harden, crack or lose flexibility.

Symptoms of a Failing Charge Air System

• Loss of engine power and acceleration
• Reduced turbo boost pressure
• Hissing noises under load
• Poor throttle response
• Increased fuel consumption
• Engine warning lights related to boost pressure

Replacing all components together ensures a complete and long-lasting solution.

Why Upgrade to a Complete Kit

  • All-in-One Replacement - Eliminates the need to diagnose and replace individual failing components.
  • Restore Full Performance - Ensures correct boost pressure, airflow and cooling efficiency.
  • Prevent Future Failures - Replaces ageing parts across the entire system to avoid repeat repairs.
  • Improve Engine Efficiency - Optimised airflow and cooling improve combustion and power delivery.
  • Ideal for Preventative Maintenance or Performance Builds - Suitable for both standard maintenance and performance-focused upgrades.



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

8166KIT
99111064080
99111063980

The product you are viewing cross references to these numbers
8112KIT.1
Product Information
Product Information

Intercooler and Pressure Pipe Kit – Complete Charge Air System Solution

This complete intercooler and pressure pipe kit is designed for Porsche 991.2 turbo models. It provides a comprehensive replacement solution for the entire charge air system, including both intercoolers, two pressure pipes and a throttle body to intercooler seal.

Fits:

  • 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

Modern turbocharged Porsche engines rely on a highly efficient and sealed intake system to deliver performance. Over time, components such as intercoolers, plastic pressure pipes and rubber connectors can degrade, leading to boost leaks, reduced cooling efficiency and loss of power. This complete kit replaces all key components in one package to restore performance and reliability.

What This Intercooler & Pressure Pipe Kit Does

The charge air system compresses air via the turbochargers, cools it through intercoolers and delivers it into the engine for combustion.

This kit ensures:

• Efficient cooling of compressed air via both intercoolers
• Consistent and leak-free boost pressure across all pipe connections
• Proper airflow from turbochargers to intake system
• Reduced intake temperatures for improved combustion efficiency
• Reliable sealing and mounting across the entire system

Replacing the full system helps maintain optimal turbo performance and engine efficiency.

What Is Included in the Kit

• 2 x Intercooler 
• 2 x Intercoolers Pressure Hose Upper (left and right)
• 2 x Intercooler Pressure Hose Lower (left and right)
• 2 x Intercooler to Cut off Valve Pressure Pipe

This complete set replaces all major airflow and connection components within the turbo intake system

SPECIFICATIONS

• 3D Scanned, CAD Designed and 3D-printed prototype; Tested in collaboration with automotive engineering firm RK Autowerks. Providing the absolute best fitting Porsche 991 Turbo intercoolers available in the aftermarket.
• CFD tested (Computational Fluid Dynamics) cast end tanks with several post machining processes for the absolute best tolerance specifications and maximum airflow distribution throughout the core.
• All OEM mounting points are retained with the OEM clip-in hardware design. Utilizing factory hardware, for an OEM-level installation. (CSF Exclusive)
• OEM style "Quick-Connect" machined fittings for precise fitment, lock and seal.
• Finished with an aerospace grade, nano-particle, heat dispersion coating that dissipates heat ~35% better than uncoated raw aluminum. (~ $500.00 value)
• "Drop-in fitment", no modifications or grinding to metal brackets, etc.
• (Requires slight trimming to the plastic intercooler shrouds)
• Individually leak / pressure tested to 120 PSI
• Individually inspected for quality control
• Instruction manual included
• Specifically cut foam protective packaging to ensure damage free shipment
• Manufactured completely in house by CSF; a tier 1 OEM manufacturer with over 50 years of cooling system manufacturing experience. Over 500,000 units sold every year and over 40 million units sold globally.

CORE DESIGN
• 8mm fin height louvered external fin with 6.5mm fin height staggered internal fin. Designed to maximize surface area contact and heat dissipation.
• Wind tunnel optimized and dyno tested for low pressure drop with best performance
• CSF's "Ultimate-Boost" High-performance bar / plate core. Built in house and pressure tested to 120 PSI
• 4.53-inch thick core compared to OEM's 3.15-inch core (115mm vs 80mm)
• Increased flow area by 43.75%
• Increased surface area by 70% (8.5m^2 vs. 5.0m^2)
• Built in-house by CSF (Only high-performance company to manufacture their own intercooler cores)

Why Intercooler and Boost System Components Fail

Turbocharged systems operate under high pressure and extreme temperatures, which leads to wear across multiple components.

Common issues include:

  • Cracked or weakened pressure pipes - Pipes can split or degrade over time due to heat and pressure.
  • Boost leaks at joints and seals - Connections and sealing surfaces can wear, causing pressure loss.
  • Intercooler efficiency loss - Internal contamination or ageing reduces cooling effectiveness.
  • Rubber adaptor wear - Rubber components can harden, crack or lose flexibility.

Symptoms of a Failing Charge Air System

• Loss of engine power and acceleration
• Reduced turbo boost pressure
• Hissing noises under load
• Poor throttle response
• Increased fuel consumption
• Engine warning lights related to boost pressure

Replacing all components together ensures a complete and long-lasting solution.

Why Upgrade to a Complete Kit

  • All-in-One Replacement - Eliminates the need to diagnose and replace individual failing components.
  • Restore Full Performance - Ensures correct boost pressure, airflow and cooling efficiency.
  • Prevent Future Failures - Replaces ageing parts across the entire system to avoid repeat repairs.
  • Improve Engine Efficiency - Optimised airflow and cooling improve combustion and power delivery.
  • Ideal for Preventative Maintenance or Performance Builds - Suitable for both standard maintenance and performance-focused upgrades.



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

8112KIT.1
99111064073
99111063973
99111064072
99111063972

The product you are viewing cross references to these numbers
Special Order item
99712301
Product Information
Product Information
Turbocharger.

porsche

Fits:
Porsche 991 Turbo S (Engine 9A1) 2015/10/01>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 17 (cyl. 1-3) and 18 (cyl. 4-6)

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

99712301
53049980217
53049980218
9A112301770
9A112301870

The product you are viewing cross references to these numbers
8112
Product Information
Product Information

Racing and high performance intercoolers for all Porsche models make a great performance upgrade as well as an incredibly durable and reliable OE replacement.

Fits:
Porsche 991.1 / 991.2 (911) Turbo / Turbo S 2013 - 2019

Cross reference numbers
99111064073, 99111063973

CSF Cooling is proud to announce the official public release of its Porsche 991 Turbo & Turbo S high performance intercoolers for both 991.1 & 991.2 models.

CSF's Porsche 991 Turbo intercoolers have been race-tested, logged, and fully validated by some of the world's best Porsche tuners. These intercoolers have been regarded as the "Go-To" option for the best performance and value available in the performance aftermarket.

SPECIFICATIONS

• 3D Scanned, CAD Designed and 3D-printed prototype; Tested in collaboration with automotive engineering firm RK Autowerks. Providing the absolute best fitting Porsche 991 Turbo intercoolers available in the aftermarket.
• CFD tested (Computational Fluid Dynamics) cast end tanks with several post machining processes for the absolute best tolerance specifications and maximum airflow distribution throughout the core.
• All OEM mounting points are retained with the OEM clip-in hardware design. Utilizing factory hardware, for an OEM-level installation. (CSF Exclusive)
• OEM style "Quick-Connect" machined fittings for precise fitment, lock and seal.
• Finished with an aerospace grade, nano-particle, heat dispersion coating that dissipates heat ~35% better than uncoated raw aluminum. (~ $500.00 value)
• "Drop-in fitment", no modifications or grinding to metal brackets, etc.
• (Requires slight trimming to the plastic intercooler shrouds)
• Individually leak / pressure tested to 120 PSI
• Individually inspected for quality control
• Instruction manual included CLICK HERE TO DOWNLOAD
• Specifically cut foam protective packaging to ensure damage free shipment
• Manufactured completely in house by CSF; a tier 1 OEM manufacturer with over 50 years of cooling system manufacturing experience. Over 500,000 units sold every year and over 40 million units sold globally.

CORE DESIGN
• 8mm fin height louvered external fin with 6.5mm fin height staggered internal fin. Designed to maximize surface area contact and heat dissipation.
• Wind tunnel optimized and dyno tested for low pressure drop with best performance
• CSF's "Ultimate-Boost" High-performance bar / plate core. Built in house and pressure tested to 120 PSI
• 4.53-inch thick core compared to OEM's 3.15-inch core (115mm vs 80mm)
• Increased flow area by 43.75%

• Increased surface area by 70% (8.5m^2 vs. 5.0m^2)
• Built in-house by CSF (Only high-performance company to manufacture their own intercooler cores)

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

8112
8112
99111064073
99111063973
99111064072
99111063972

The product you are viewing cross references to these numbers
9A262025100/1
Product Information
Product Information
Auxiliary water pump for turbocharger.

Fits:
Porsche 718 Boxster 2017>>
Porsche 718 Cayman 2017>>
Porsche 997.2 Turbo 2010-13
Porsche 991.2 Carrera 2017-19
Porsche 991 Turbo 3.8L 2013-20

Diagram ref no 9

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9A262025100
9A262025100
9A162025100
174481
1035
997 620 251 01
99762025101
99762025102
997 620 251 02

The product you are viewing cross references to these numbers
Special Order item
9A110724274
Product Information
Product Information
Breather Line For Turbocharger, Cylinders 4-6.

The breather line for the turbocharger (cylinders 4–6) is a key component of the engine crankcase ventilation and turbo system, designed to route blow-by gases and oil vapours safely away from the engine and turbocharger assembly. This line ensures proper pressure regulation and helps prevent oil contamination within the intake and turbo system.

Fits:

  • Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 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 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  
Diagram Ref No 16

What This Product Does:

  • Channels blow-by gases from cylinders 4–6 to the intake/turbo system
  • Regulates crankcase pressure in turbocharged engines
  • Prevents oil vapour buildup and contamination
  • Supports efficient combustion and emissions control

Symptoms Of Wear Or Failure:
  • Cracked, brittle, or damaged hose
  • Oil leaks or residue around the turbo area
  • Whistling noises caused by vacuum leaks
  • Rough idle or engine performance issues
  • Increased oil consumption
  • Check engine light related to ventilation faults

Why Replacement Matters:
  • Ensures proper crankcase ventilation and pressure balance
  • Prevents oil leaks and vacuum leaks
  • Maintains optimal turbocharger performance
  • Reduces oil contamination in the intake system
  • Helps avoid costly engine and turbo damage



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

9A110724274
9A110724274

The product you are viewing cross references to these numbers
700001099.991.2
Product Information
Product Information
The competition package for the Porsche 991 consists the Intercooler Upgrade Kit and the Y-Charge Pipe kit. It´s suitable for the following vehicles.

Porsche 991.1 911Turbo 383KW/520PS
Porsche 991.1 911Turbo S 412KW/560PS
Porsche 991.2 911Turbo 397KW/540PS
Porsche 991.2 911Turbo S 427KW/580PS
Porsche 991.2 911Turbo S Exclusive 446KW/607PS

The Wagner Tuning Porsche 991 911 Turbo (S) Intercooler Kit has the following core size (2 x [320mm x 238mm x 110mm] = 16,755L)/(2x[12,6Inch x 9,37Inch x 4,33Inch = 1022,45Inch³), providing 40% more volume compared to the stock mounted intercooler. Our engineers have increased the intercooler core size and efficiency, as well as improved the end tank design to remove any OEM bottlenecks, resulting in increased flow rating and charge cooling properties. This intercooler Kit uses our award winning Wagner Tuning Competition Intercooler Core which is made specifically for this application. It is one of the highest quality Tube Fin cores available on the market. The intercooler has just a weight of 2x 5,3kg. Flow analysis and simulations were created to optimise the design for best possible Internal Airflow. The Intercooler Kit also includes a suitable carbon air shroud to ensure optimum airflow to the intercooler. As well as additional silicone hoses with an enlarged cross-section. This intercooler kit is the best choice when it comes to performance gains and low intake temperatures. Anti Corrosion protective Coating with perfect thermal heat dissipating character. Optimal cooling with clearly more power. Kit is ready for installation. Fitment is easy, replacing the OEM intercooler. All of our products undergo rigorous quality control and are also tested by compressive strength of up to 6 bar. This intercooler kit is suitable for racing. Ø65mm (2,56Inch) In and Outlets.

Kit comes with:
2 Intercooler black
2 Carbon air shrouds
4 Silicone Hoses
8 Hose Clamps
1 Mounting Material
2 Aluminum Adapter
1 Installation Instruction

This unique Y-charge pipe has been designed for the best possible internal airflow, while using laborious CFD simulation. All bottlenecks of the stock mounted Y-charge pipe were eliminated and adapted to a uniform cross-section. This means, the intake air is no longer unnecessarily blocked by cross-sectional changes and results in a reduction of the pressure drop inside the charge air system. For your vehicle, this manifests itself in a noticeable increase in performance (depending on the software version).

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

700001099.991.2
700001099.991.2

The product you are viewing cross references to these numbers
Special Order item
9A210608
Product Information
Product Information
Coolant feed pipe turbocharger. 

porsche

Fits:
Porsche 991.2 - 2016 to 2019


Click 'Zoom in' for large parts diagram.
Diagram ref no 3 or 4




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9A210608
9A210608101
9A210608200

The product you are viewing cross references to these numbers
Special Order item
9A210608
Product Information
Product Information
Coolant return pipe turbocharger. 

porsche

Fits:
Porsche 991.2 - 2016 to 2019


Click 'Zoom in' for large parts diagram.
Diagram ref no 5 or 6



Related reference numbers
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9A210608
9A210608400
9A210608301

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8166
Product Information
Product Information
CSF High-performance intercoolers.

For a long time the only solution for a Porsche 991 GT2 RS intercooler upgrade was not an upgrade, but a band-aid for the stock 1990's style water spray system which sprays water from a reservoir in the frunk and onto the intercoolers. The band-aid was to install a larger capacity water tank which simply delayed the inevitable running out of water and output to be automatically limited by the factory ECU to try to keep the engine safe. Until you refilled the reservoir again it's likely your 991 GT2 RS would struggle with charge temps and limited output.

Experts in cooling CSF and PWR have joined operations to deliver a High-Performance Intercooler Upgrade for the 991 GT2 RS which eliminates heat soak and lowers charge air temps on stock, tuned and tracked cars. CSF achieves this by using an F1 performance grade core which dramatically improves the efficiency of the intercoolers within the same space constraints.

The CSF High-Performance Intercoolers for the GT2 RS boasts 13 more cooling rows than the stock intercooler, boasting 28 rows in total vs. the stock 15. The tube height and fin height is also maximised with the CSF core boasting a dual-row 3mm rolled tube vs. the factory 7mm height and the CSF core uses a fin height of 4.85mm vs. the factory 7mm. As you can see, the CSF core maximises performance in every area.

The differences don't just end in performance. The CSF High-Performance Intercoolers for the GT2 RS also boast reliability and durability improvements. Customer feedback has reported numerous failures with the standard end-tanks which uses an un-secure and failure-prone crimped and gasketed mechanism which can leak over time with numerous boost cycles and increased boost pressure with tuned cars, whereas the CSF High-Performance Intercoolers for the GT2 RS is 100% TIG welded for maximum reliability and durability.

Stock Porsche Intercooler Specification :
• Numbers of Tubes = 15
• Tube Height = 7mm
• Fin Height = 7mm
• Weight = 8.146KG
• Cast End Tanks, Crimped with Gaskets

Cross reference numbers
99111064073, 99111063973

CSF High Performance GT2 RS Intercooler Specification:
• Numbers of Tubes = 28
• Tube Height = 3mm Rolled Tube
• Fin Height = 4.85mm
• Weight = 8.146KG
• Billet End Tanks with TIG Welding

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

8166
8116
99111064080
99111063980

The product you are viewing cross references to these numbers
Special Order item
99150484900
Product Information
Product Information
Grommet For Charge Air Cooler.
Sold Each.
x6 Required Per Car.

Fits:
Porsche 991 Turbo / Turbo S 3.8L MKI 2014>>2016
Cars With Engine Codes:
A171

Porsche 991 Turbo / Turbo S 3.8L MKII 2016>>2020
Cars With Engine Codes:
DABA / DAB / DBCA / DBC / DBCB

Porsche 991 GT2 RS 3.8L MKII 2017>>2020
Cars With Engine Codes:
DHNA

Diagram Ref No 34

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

99150484900
99150484900

The product you are viewing cross references to these numbers
Special Order item
99111064673
Product Information
Product Information
Intercooler pressure hose.
Sold each.

porsche

Fits:
Porsche 991 Turbo 2014>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

Related reference numbers
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99111064673
99111064673
99111064672

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Special Order item
99111063
Product Information
Product Information

Intercooler to Turbocharger Pressure Hose 

These intercooler to turbocharger pressure hoses are designed for Porsche 991.1 and 991.2 turbo models and are specific to cylinders 1–3 (bank 1) and 4-6 (bank 2). They form a critical part of the turbocharged charge air system, ensuring compressed air is transferred efficiently between the turbocharger and intercooler.

Fits:

  • Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 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

Diagram ref no 7 and 8

In high-performance twin-turbo Porsche engines, each bank operates under extreme pressure and temperature. This hose plays a vital role in maintaining boost pressure and ensuring consistent airflow to the engine.

What This Pressure Hose Does

This hose connects the turbocharger to the intercoolers allowing compressed air to be cooled before entering the engine.

It helps:

• Maintain stable boost pressure
• Ensure efficient airflow between turbocharger and intercooler
• Deliver cooled air for optimal combustion
• Support balanced engine performance across both cylinder banks
• Maintain airtight integrity of the charge air system

A failure in this hose can directly affect performance on one side of the engine.

Why Intercooler/Turbo Pressure Hoses Fail

Due to the extreme operating conditions of turbocharged engines, these hoses are subject to wear over time.

Common causes include:

Heat and pressure cycling
Constant exposure to high temperatures and boost pressure weakens materials.

Cracking or splitting
Rubber or reinforced sections can degrade, especially near connectors.

Boost pressure stress
Higher boost levels increase strain on hoses.

Seal and clamp deterioration
Connections can loosen or wear, causing air leaks.

Symptoms of a Failing Pressure Hose 

• Loss of boost pressure
• Reduced engine performance or uneven power delivery
• Hissing or air leak noise under acceleration
• Engine warning lights related to boost or airflow imbalance
• Poor throttle response
• Increased fuel consumption

Replacing a faulty hose restores balanced airflow and engine performance.

Why You May Need to Replace This Hose

Restore Balanced Boost Pressure
Ensures consistent performance across both cylinder banks.

Eliminate Boost Leaks
Prevents pressure loss within the turbo system.

Improve Engine Efficiency
Maintains optimal airflow and combustion.

Prevent Further Turbo System Damage
Leaks can cause increased strain on turbochargers and related components.



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

99111063
99111063571
991111063572
99111063671
99111063672
99111063673

The product you are viewing cross references to these numbers
Special Order item
99111063
Product Information
Product Information

Intercooler to Turbocharger Pressure Hose 

These intercooler to turbocharger pressure hoses are designed for Porsche 991.2 GT2 RS models and are specific to cylinders 1–3 (bank 1) and 4-6 (bank 2). They form a critical part of the turbocharged charge air system, ensuring compressed air is transferred efficiently between the turbocharger and intercooler.

Fits:

  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19       

Diagram ref no 7 and 8

In high-performance twin-turbo Porsche engines, each bank operates under extreme pressure and temperature. This hose plays a vital role in maintaining boost pressure and ensuring consistent airflow to the engine.

What This Pressure Hose Does

This hose connects the turbocharger to the intercoolers allowing compressed air to be cooled before entering the engine.

It helps:

• Maintain stable boost pressure
• Ensure efficient airflow between turbocharger and intercooler
• Deliver cooled air for optimal combustion
• Support balanced engine performance across both cylinder banks
• Maintain airtight integrity of the charge air system

A failure in this hose can directly affect performance on one side of the engine.

Why Intercooler/Turbo Pressure Hoses Fail

Due to the extreme operating conditions of turbocharged engines, these hoses are subject to wear over time.

Common causes include:

Heat and pressure cycling
Constant exposure to high temperatures and boost pressure weakens materials.

Cracking or splitting
Rubber or reinforced sections can degrade, especially near connectors.

Boost pressure stress
Higher boost levels increase strain on hoses.

Seal and clamp deterioration
Connections can loosen or wear, causing air leaks.

Symptoms of a Failing Pressure Hose 

• Loss of boost pressure
• Reduced engine performance or uneven power delivery
• Hissing or air leak noise under acceleration
• Engine warning lights related to boost or airflow imbalance
• Poor throttle response
• Increased fuel consumption

Replacing a faulty hose restores balanced airflow and engine performance.

Why You May Need to Replace This Hose

Restore Balanced Boost Pressure
Ensures consistent performance across both cylinder banks.

Eliminate Boost Leaks
Prevents pressure loss within the turbo system.

Improve Engine Efficiency
Maintains optimal airflow and combustion.

Prevent Further Turbo System Damage
Leaks can cause increased strain on turbochargers and related components.



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

99111063
99111063581
99111063582
99111063681
99111063682

The product you are viewing cross references to these numbers
Special Order item
99916608309::2
Product Information
Product Information
Large captive nut for intercooler; sold individually.

porsche

Fits:
Porsche 991.2 Carrera 2017-19


NOTE: Eight units are used in total across both sides.

Special Order item
99970756441
Product Information
Product Information
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.

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99970756441
99970756440
99970756441

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DISPLAYING 1 to 16 (of 54 products)
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About Turbo Chargers / Intercoolers & Parts

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

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

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

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

What Do Turbochargers & Intercoolers Do?

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

Core Functions:

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

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

Why Do Turbochargers & Intercoolers Fail?

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

Common Causes of Failure Include:

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

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

Why Replace Components?

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

Key Benefits:

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

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

Highlights:

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

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