I just picked up my Audi RS3 FL Sedan with OPF from HPerformance. I got the 4-inch exhaust system and a Stage 3 upgrade. I’m just super happy with how it drives and, above all, how brutal it sounds despite the OPF. Everything worked great—I can really recommend it to anyone who loves their five-cylinder engine!!
HPerformance “Air-to-Air” Intercooler Upgrade – Audi RS4 Facelift (FL)
We are the first manufacturer in the world to have addressed one of the biggest weaknesses of the Audi RS4 facelift (FL) and created a unique product specifically for this model.
The facelifted Audi RS4 comes standard with a water-to-air intercooler system. This system operates very efficiently within a specific power range. However, as soon as engine power increases, the system increasingly reaches its limits, and the water acts as a heat sink.
The higher the power output—and thus the boost pressure and air flow—and the longer the vehicle is driven on the highway or under full load, the more the cooling capacity decreases. The intake air temperature rises, the engine management system reacts accordingly, and engine power can drop significantly.
We have the solution!
Our model, designed specifically for the Audi RS4 facelift (FL) completely replaces the stock water-to-air intercooler system.
The original system is removed and replaced with the high-performance HPerformance intercooler system.
The switch to air-to-air cooling significantly reduces back pressure in the charge air system. At the same time, the charge air temperature remains at a consistently low level—an average of 10–15 °C above the outside temperature—even under prolonged continuous load.
Thanks to this enormous cooling capacity, all performance levels of the facelifted Audi RS4—from the stock vehicle to those with extensive performance upgrades—benefit.
Our intercooler system thus forms the foundation for consistently stable and reproducible engine performance.
Product details
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Specially designed for the Audi RS4 facelift (FL)
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Highly efficient and durable air-to-air intercooling
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Consistent and reproducible performance even under high continuous loads
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350% greater intercooler volume compared to the stock system
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Designed for engine outputs up to 900 PS
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Efficient operating range up to 3 bar boost pressure thanks to a high-quality bar-and-plate network
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Suitable for all performance levels of the Audi RS4 facelift
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100% product inspection – pressure-tested at 5 bar
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A clearly noticeable increase in power of up to 25 PS and 60 Nm in a direct comparison with the standard cooling system
Scope of delivery
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1 × HP Sport Series Air-to-Air Intercooler
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1 × Boost Pressure Hose from the Turbocharger to the Intercooler
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1 × CNC-milled adapter for the boost pressure sensor
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1 × CNC-milled connector
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1 × silicone hose from the intercooler to the throttle body
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6 × stainless steel hose clamps
Vehicle compatibility
Suitable exclusively for:
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Audi RS4 Facelift (FL)
Important Installation Instructions
Please have all work on the vehicle performed exclusively by trained professionals.
The bumpers on modern vehicles are equipped with various sensors and electronic control systems that can be damaged if handled improperly.
We do not provide any warranty or guarantee for damage caused by improper installation.
Important: When converting to our air-to-air intercooler system, an additional adjustment to the engine software is required. Among other things, the water pump of the original water-to-air intercooler system must be deactivated via the software.
Delivery Time
Current estimated delivery time: 3–4 business days.
Unless otherwise indicated, all articles and services are racing articles without guarantee / warranty and without STVO approval.
The same applies to modifications made to the vehicle. The performance figures provided are averages based on ARAL 102 OCTANE fuel; they may vary depending on the use of lower-quality fuel or wear and tear on the vehicle.
No acceleration times are guaranteed. Using the wrong type of fuel at a later date may cause damage to the vehicle. No warranty or guarantee is provided for this!
HPerformance assumes no liability for mobility guarantees or costs incurred during the modification period, nor for any resulting delays.
Scheduled timeframes are not binding and may vary as needed.
All services are custom-made and one-of-a-kind products that are excluded from the statutory right of return.
No warranty is provided for products that are not installed in a specialized workshop by trained professionals.
Work on motor vehicles may only be performed by trained professionals. Installation errors can lead not only to product malfunctions but also to dangerous technical and, in some cases, legal consequences for the vehicle.
Therefore, please have all modifications performed by a certified automotive repair shop affiliated with the trade guild.
If installation instructions for a product are not available for download in the online store, they are not available.
- Installation advice or instructions are not provided over the phone.
If vehicles have been modified previously, additional costs may apply. Please note that our TÜV-approved/registrable products are not necessarily compatible with products from other manufacturers for registration purposes ! Please verify in advance whether any hardware components you have already installed—that are not from HPerformance—can be registered as TÜV-compliant when used with our products!
Discoloration occurs on the silencers, pipe and tailpipe of all exhaust system components during operation. These are material-related changes that are not covered by the warranty/guarantee of the item and have no negative effect on the use or technical properties of the item.