Unleash the full potential of your Audi B9 RS4 or RS5 with the Untd. Performance Catted Downpipe w/Shield. Designed for the 2.9T V6 engine, this downpipe replaces the restrictive factory components to enhance exhaust flow, increase turbo efficiency, and deliver a more aggressive exhaust note—all while maintaining emissions compliance. With integrated heat shielding for optimal durability, this downpipe is the ideal upgrade for enthusiasts seeking peak performance and a refined sound from their Audi.
Unleash the full potential of your Infiniti Q50 or Q60 with the Untd. Performance Resonated Catless Downpipe, precision-engineered for the 3.0T VR30 twin-turbo V6 engine. This race-inspired upgrade eliminates restrictive factory catalytic converters to dramatically enhance exhaust flow, turbo response, and overall engine performance. With an integrated resonator, this version balances raw power with a refined exhaust note—making it ideal for drivers who want performance without excessive cabin drone.