Audi S4/5 (B8) - Valved Exhaust with Mid-Pipes (CES3)*This System fits BOTH the V6 and V8 Models of the B8 chassis* \nThe iconic CAPRISTO Valved Exhaust System offers the best of both worlds through its capability to produce an aggressive exhaust note under acceleration, and a more subdued sound for city driving. On the V8 models Capristo's exhaust shows a massive 20hp increase in performance torque over the entire speed range and the sound gets an aggressive V8 rumble. With the V6 engines, there is a