APR aprIC100028 Air-to-Water Intercooler System for 2018–2024 Audi RS5

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 for the B9 Audi RS5 2.9T EA839 is designed to improve charge-air cooling, helping support more consistent horsepower and torque during repeated acceleration, track driving, quarter-mile passes, and spirited driving. Its larger cooling capacity helps reduce intake air temperature and resist heat soak compared with the factory intercooler.

Featuring a proprietary aluminum cooling core, CFD-optimized cast aluminum end tanks, and CNC-machined, TIG-welded construction, the APR system flows more than stock at every measured pressure differential. The application-specific charge-air and coolant hoses, along with CNC-bent and laser-cut brackets, support installation on applicable vehicles. The system does not require tuning and does not negatively impact emissions.

Key Features & Performance Benefits

• Higher cooling capacity: 5,500 cm³ compared with the 1,870 cm³ factory unit.
• Heat-soak resistance: Helps maintain consistent performance during repeated use.
• Improved airflow: Flows more than stock at every measured pressure differential.
• Lower intake air temperatures: Helps reduce power loss caused by excessive charge-air heat.

Key Product Specifications & Technical Data

• Brand: APR
• Part number: aprIC100028
• Product type: Air-to-water intercooler system
• Application: Audi RS5 B9 2.9T EA839
• Core volume: 5,500 cm³
• Factory core comparison: 1,870 cm³
• Construction: CNC-machined and TIG-welded
• End tanks: CFD-optimized cast aluminum

What's Included

• APR air-to-water intercooler system
• Application-specific ez-flow charge-air hoses
• Application-specific coolant hoses
• CNC-bent and laser-cut brackets
• Installation instructions and support

Fitment

Fits 2018 Audi RS5, 2019 Audi RS5, 2019 Audi RS5 Sportback, 2021 Audi RS5, 2021 Audi RS5 Sportback, 2022 Audi RS5 Sportback, 2022 Audi RS5, 2023 Audi RS5 Sportback, 2023 Audi RS5, and 2024 Audi RS5.

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

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1
Regular Stock: t