Downpipe audi s4 rs6 c5 4.2l v8 decat

Unlock sharper throttle response and a more aggressive exhaust note with this Decat Downpipe engineered for the Audi S4/RS6 C5 4.2L V8.
Designed to replace the restrictive factory catalytic converters, it improves exhaust flow for better performance while delivering a cleaner, high-performance fitment for enthusiasts building a track-focused setup.
Durable construction and precision-fit design ensure reliable sealing and straightforward installation on compatible C5-platform V8 models.