CTS Turbo Audi C7/C7.5 S6/S7/RS7 4.0T Cast Downpipe Set with High Flow Cats

CTS Turbo's cast downpipe set replaces the restrictive factory units on C7 and C7.5 Audi S6, S7 and RS7 4.0-litre twin-turbo V8 models. Precision-cast construction ensures consistent internal geometry for optimal exhaust flow, while integrated high-flow catalytic converters maintain emissions compliance. The direct-fit design eliminates the need for fabrication, with all necessary hardware included for straightforward installation. Expect reduced backpressure, sharper throttle response and a more aggressive exhaust note that complements other performance modifications on these twin-turbo platforms.