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Intercooler to Turbocharger Pressure Hose. Porsche 991.2 GT2 RS ❭ 99111063
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
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
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99111063
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
- Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21

Fits:
Porsche 9YA Cayenne 3.0L 05/2017>>
Porsche 971 Panamera 3.0L 05/2016 - 12/2020
Porsche 971 Panamera 4.0L TDI CR 05/2016 - 12/2020
Porsche 95B.2 Macan 3.0L 2019 - 2021
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A725323210
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4S Diesel V8 4.0L 4WD (422 Hp) 2017-18
- Porsche 971.1 Panamera 4S Diesel 4.0L Twin-Turbo V8 Sport Turismo 2017-18
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21
Fits:
Porsche 9YA Cayenne 3.0L 05/2017>>
Porsche 971 Panamera 3.0L 05/2016 - 12/2020
Porsche 971 Panamera 4.0L TDI CR 05/2016 - 12/2020
Porsche 95B.2 Macan 3.0L 2019 - 2021
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A725323210
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 971.1 Panamera V6 3.0L 2WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD (330 Hp) 2017-20
- Porsche 971.1 Panamera 4 V6 3.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera 4 3.0L Turbocharged V6 Sport Turismo 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
- Porsche 971.1 Panamera 4S V6 3.0L 4WD Executive 2017-20
- Porsche 95B.2 Macan S Petrol 3.0L V6 (354Bhp) 2019-21

Fits:
Porsche 9YA Cayenne 3.0ltr - 05/2017 Onwards
Porsche 971 Panamera 3.0ltr - 05/2016 to 12/2020
Porsche 95B.2 Macan 3.0ltr - 2019 to 2021
Click 'Zoom in' for large parts diagram.
Diagram ref no 25
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A725372510
The product you are viewing cross references to these numbers
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