# 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!

-   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

This Part Fits:

Year

Make

Model

Submodel

2018-2019,2021-2024

Audi

RS5

Base

2019,2021-2025

Audi

RS5 Sportback

Base

## Details

- **Price:** 3360.18 CAD
- **Vendor:** APR
- **Type:** Intercoolers

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 3360.18 CAD | In stock |

## Images

- Photo - Primary
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package
- Photo - out of package

---

> Source: [Standard Auto Part](https://www.standardautopart.com/products/apr-18-19-audi-rs5-b9-2-9t-air-to-water-intercooler-system)
> Updated: 2026-07-04