APR Front Mount Air-to-Water Charge Cooler Intercooler System for Audi RS4 & RS5 (B9 / B9.5)

Defeat heat soak and unleash maximum power on your Audi RS4 or RS5 B9/B9.5 2.9T with the APR Air-to-Water Intercooler System. Featuring a 38% larger core, 53% more fluid volume, and a 33% reduction in pressure drop, this direct bolt-on cooling upgrade lowers intake air temperatures (IATs) dramatically—delivering back-to-back dyno gains of up to +27 AWHP over stock.