Unlock raw, unfiltered performance from your Audi S6, RS6, S7, or RS7 (C7 platform) with the Untd. Performance 2.75″ Catless Downpipe. Purpose-built for the twin-turbo 4.0T V8, this downpipe removes the restrictive factory catalytic converters to maximize exhaust flow, unleash horsepower, and transform your driving experience. Whether you’re carving corners or chasing numbers on the dyno, this downpipe delivers the performance, sound, and response you’ve been looking for.