Downpipe audi s4 b5 2.7 biturbo turbo k03 / k04 k04 rs6

Unlock faster spool, sharper throttle response, and a deeper turbo tone with this performance downpipe for the Audi S4 B5 2.7T.
Designed to fit K03, K04, and RS6/K04 turbo setups, it replaces the restrictive factory section with a smoother, higher-flow path to reduce backpressure and support higher boost—ideal for tuned street cars and track builds.
Built from durable, heat-resistant materials for long-term reliability and a precise, bolt-on fit.