Audi RS3 (2016-On) 8V/8Y 2.5 TFSI do88 Performance Intercooler

Take your Audi RS3's cooling performance to the next level with the do88 Performance Intercooler — a premium high-capacity charge air cooling upgrade engineered for the turbocharged 2.5 TFSI five-cylinder engine.

Developed in Sweden and featuring a motorsport-grade Garrett intercooler core, this complete kit is designed to reduce intake air temperatures, improve airflow and deliver consistent performance under demanding driving conditions.

Whether your RS3 is running factory power, Stage 1, Stage 2 or a high-output turbocharger upgrade, the do88 intercooler provides the additional cooling capacity needed to support reliable performance.

Engineered for Maximum Cooling Performance

The factory Audi RS3 intercooler can struggle to maintain consistent intake temperatures during sustained high-load driving, particularly on modified vehicles running increased boost pressure.

The do88 performance intercooler addresses these limitations with a significantly larger core, improved internal airflow characteristics and redesigned end tanks.

By reducing charge air temperatures and minimising pressure drop, the system helps maintain consistent engine performance during repeated acceleration and demanding driving conditions.

Proven Performance Improvements

Extensive development and testing have resulted in significant improvements over the factory intercooler.

Intake Temperature Reduction

During do88 testing under identical conditions:

• Factory intercooler: 55°C

• do88 performance intercooler: 23°C

• Temperature reduction: 32°C

Lower intake temperatures help reduce heat soak and maintain consistent performance during sustained acceleration.

Increased Intercooler Core Volume

• Factory core volume: 8,307cm³

• do88 core volume: 18,102cm³

• 118% larger than factory

Increased Cooling Area

• Factory active cooling area: 1,038cm²

• do88 active cooling area: 1,866cm²

• 80% larger than factory

Improved Airflow

At a pressure drop of 0.125 bar:

• Factory intercooler: 432 CFM

• do88 intercooler: 526 CFM

• 22% greater airflow

These improvements reduce restrictions within the charge air system and support improved turbocharger efficiency.

Performance figures are manufacturer test results and may vary with vehicle specification, environmental conditions and modifications.

Garrett Motorsport 97mm Core

At the heart of this upgrade is a high-density 97mm bar-and-plate intercooler core developed by Garrett Motorsport.

Rated to support applications producing up to 1,000 HP, this core provides substantial cooling capacity for high-performance street, track and tuned RS3 applications.

Its advanced internal cooling fin design maximises heat transfer while maintaining excellent airflow characteristics.

Redesigned Cast End Tanks

The do88 intercooler features specially designed cast aluminium end tanks developed using CFD analysis, 3D printing and extensive flow testing.

Unlike conventional intercoolers that retain restrictive factory-sized connections, the do88 system uses larger 80mm machined inlet and outlet connections.

These redesigned connections improve airflow distribution and help eliminate restrictions that can limit high-output turbocharged engines.

Matching silicone hoses are included to connect the intercooler to the factory charge pipes.

Replacement Chromoly Crash Bar

The factory RS3 crash bar restricts the available space and airflow around the intercooler.

To maximise cooling performance, do88 includes a replacement chromoly steel crash bar designed to provide additional clearance and allow more ambient airflow through the larger intercooler core.

The replacement assembly retains mounting provisions for the factory Adaptive Cruise Control radar and ambient temperature sensor.

This provides a comprehensive intercooler upgrade rather than simply replacing the intercooler core.

Key Features

• do88 Performance Intercooler Kit

• Part number: ICM-420

• Suits Audi RS3 8V and 8Y

• Designed for 2.5 TFSI five-cylinder engines

• 97mm Garrett Motorsport intercooler core

• Core rated to support up to 1,000 HP applications

• 118% increased core volume

• 80% increased active cooling area

• Up to 32°C lower intake temperatures in manufacturer testing

• 22% increased airflow at tested pressure drop

• 80mm machined intercooler connections

• CFD-developed cast aluminium end tanks

• High-quality silicone charge hoses included

• Replacement chromoly steel crash bar included

• Designed and developed in Sweden

• Suitable for factory and modified vehicles

• Professional installation recommended

Included Components

• do88 performance intercooler

• Replacement chromoly crash bar

• Intercooler inlet silicone hose

• Intercooler outlet silicone hose

• Four hose clamps

• Mounting hardware and installation accessories

Fitment

Audi RS3 Sportback 8V

• 2016-On

• 2.5 TFSI

• 362 HP

• Engine Code: CZGB

Audi RS3 Sportback / Sedan 8V

• 2017-On

• 2.5 TFSI

• 400 HP

• Engine Code: DAZA

Audi RS3 Sportback / Sedan 8Y

• 2021-On

• 2.5 TFSI

• 400 HP

• Engine Code: DNWA

Specifications

Brand: do88 Part Number: ICM-420 Product: Performance Intercooler Kit Engine: Audi 2.5 TFSI Turbocharged Five-Cylinder Core Manufacturer: Garrett Motorsport Core Type: Bar and Plate Core Thickness: 97mm Core Volume: 18,102cm³ Active Cooling Area: 1,866cm² Intercooler Connections: 80mm Application: Audi RS3 8V / 8Y

Final compatibility must be confirmed before ordering using the vehicle year, model, chassis and engine code.

Installation Information

The do88 intercooler is designed as a vehicle-specific upgrade, replacing the factory intercooler and crash bar assembly.

The included silicone hoses are designed to connect the larger intercooler fittings to the factory charge pipe arrangement.

Professional installation is recommended due to the removal and replacement of front-end components and the factory crash bar.

Following installation, the charge air system should be checked for leaks and the Adaptive Cruise Control system inspected and recalibrated where required.

Important Notes

• Suits selected Audi RS3 8V and 8Y 2.5 TFSI models.

• Confirm vehicle year and engine code before ordering.

• Includes replacement chromoly crash bar.

• do88 has not conducted formal crash testing of the replacement crash bar.

• The replacement crash bar may not comply with applicable road vehicle safety regulations.

• Road registration and insurance implications should be checked before installation.

• Professional installation is recommended.

• ACC radar calibration may be required after installation.

• Performance results will vary depending on vehicle specification and modifications.

• Final compatibility must be confirmed before ordering.

• Product images may be generic and used for illustration purposes only.

• Available through Euroflow.

Why Choose do88?

do88 is a Swedish manufacturer specialising in high-performance intercoolers, intake systems and charge air cooling solutions for European performance vehicles.

With a focus on detailed engineering, CFD development, real-world testing and high-quality manufacturing, do88 products are designed to improve cooling efficiency and airflow in demanding applications.

For Audi RS3 owners seeking greater cooling capacity, reduced heat soak and improved performance consistency, the do88 intercooler is a comprehensive solution.

Why Choose Euroflow?

Euroflow supplies premium performance upgrades for European vehicles, with a focus on trusted brands, correct fitment and high-quality product support.

For Audi RS3 owners building a Stage 2 or high-output performance package, the do88 intercooler delivers substantial cooling improvements to complement the vehicle's turbocharged five-cylinder engine