Wagner Cast Intercooler Upgrade, C7 4.0TThe Audi RS6 RS7 and Audi S6 S7 feature an indirect intercooler circuit where the charge air is cooled by a water cooled intercooler. On this vehicle, the intercooler sits specifically in the hot V of the engine to provide optimal cooling. Our unique Wagner Tuning performance intercooler was developed specifically for the demanding requirements of RS models. With a high quality intercooler core, it offers 118% more external core volume compared to the