The APR Coolant Performance System (CPS) is a massive front-mounted cooler upgrade that dramatically reduces intake air temperature (IAT), minimizes heat soak, and provides increased performance! It is 140% larger than stock and features a self-bleeding cooling circuit to ensure it is always operating at peak performance. The system is easy to maintain and fully integrated into the factory cooling circuit. This upgrade is highly recommended at every stage! Now available for the 3.0T / 4.0T found in the B8/B8.5 A4/A5/S4/S5/Q5/SQ5 and C7/C7.5 A6/A7/S6/S7. Read More