APR 18-19 Audi RS5 B9 2.9T Air-To-Water Intercooler System

The APR Air-to-Water Intercooler System for the B9 RS4 / RS5 2.9T EA839 offers a substantial leap in performance that directly translates to more horsepower and torque, and consistent performance that's unmatched by the factory cooler. The factory cooler struggles to cool the charged air resulting in excessive intake air temperature due to its small size. This struggle results in ECU protecting the engine by pulling power during a single quarter mile pass, lap around a track, or even during a spirited drive. Simply bolting on the APR System relieves this issue, resulting in an instant boost in power and consistency. The APR system has no trouble remaining consistent thanks to its ability to resist power-robbing heatsoak! Fits 2018-2024 Audi RS5

• Flows more than stock at every measured pressure differential
• 5,500cm³ vs the undersized 1,870cm³ factory unit
• Application specific ez-flow charge air hoses
• Dramatically lowers intake air temperature
• 194% larger than the factory intercooler
• CNC machined and tig welded construction
• Consistently more horsepower and torque
• CFD optimized cast aluminum end tanks
• Does not negatively impact emissions
• Application specific coolant hoses
• Proprietary aluminum cooling core
• Instructions and support included
• CNC bent and laser cut brackets
• Does not require tuning

The APR Air-to-Water Intercooler System, part number aprIC100028, is engineered for the B9 Audi RS5 equipped with the 2.9T EA839 engine. The factory intercooler can struggle to control charged-air temperatures during repeated acceleration, track sessions, quarter-mile passes, or spirited driving. Rising intake air temperatures may cause the engine control unit to reduce power for protection. This APR system provides a substantial improvement in charge-air cooling, helping deliver more consistent horsepower, torque, and throttle response without requiring an engine tune.
Designed as a direct-fit upgrade, the APR system uses application-specific charge-air and coolant hoses, CNC-bent and laser-cut mounting brackets, and a proprietary aluminum cooling core. CFD-optimized cast aluminum end tanks promote efficient airflow, while the CNC-machined and TIG-welded construction provides dependable strength for high-performance street and track use. The system flows more air than the factory unit at every measured pressure differential and is engineered to resist power-robbing heat soak.
The APR intercooler provides a 194% larger cooling capacity than the factory unit, with a 5,500-cubic-centimeter core compared with the original 1,870-cubic-centimeter design. By dramatically lowering intake air temperatures, it helps maintain repeatable performance across multiple pulls and demanding driving conditions. Installation instructions and product support are included, making this a practical upgrade for Audi RS5 owners seeking improved cooling and consistency.
Compatible with 2018-2024 Audi RS5 and RS5 Sportback models using the B9 2.9T EA839 engine. The system does not negatively impact emissions and does not require tuning. This product is not CARB approved, and applicable emissions requirements should be reviewed before installation or use on public roads.

Features:

• Flows more air than the factory intercooler at every measured pressure differential

• Provides a 5,500-cubic-centimeter cooling core compared with the factory 1,870-cubic-centimeter unit

• Offers 194% greater cooling capacity than the factory intercooler

• Dramatically lowers intake air temperatures

• Helps deliver consistent horsepower and torque during repeated performance driving

• Resists power-robbing heat soak

• Includes application-specific charge-air and coolant hoses

• s a proprietary aluminum cooling core

• Uses CFD-optimized cast aluminum end tanks

• Built with CNC-machined and TIG-welded construction

• Includes CNC-bent and laser-cut mounting brackets

• Does not require engine tuning

• Does not negatively impact emissions

• Includes installation instructions and product support

• Fits 2018-2024 Audi RS5 and RS5 Sportback models with the 2.9T EA839 engine

Fitment:
Audi RS5 Base 2018
Audi RS5 Base 2019
Audi RS5 Base 2021
Audi RS5 Base 2022
Audi RS5 Base 2023
Audi RS5 Base 2024
Audi RS5 Sportback Base 2019
Audi RS5 Sportback Base 2021
Audi RS5 Sportback Base 2022
Audi RS5 Sportback Base 2023
Audi RS5 Sportback Base 2024
Audi RS5 Sportback Base 2025