Unlock more power and a more aggressive exhaust note with the Untd. Performance Catted Downpipe, engineered for Audi 3.0L supercharged V6 engine found in the A6, A7, S4, S5, and SQ5. This high-flow downpipe is designed to replace the restrictive factory catalytic converter, reducing backpressure, improving turbo efficiency, and enhancing throttle response while keeping your ride emissions-compliant. Perfect for enthusiasts seeking more performance with a refined sound.