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The Untd. Performance Air Cooler / Intercooler Kit for the Audi B9 RS4/RS5 2.9T EA839 is engineered for maximum cooling efficiency and reliability under high boost conditions. Featuring a high-capacity core and optimized flow design, it reduces intake air temperatures to maintain consistent power delivery. Built with premium materials for durability, this kit supports both stock and tuned applications. Perfect for enthusiasts seeking improved performance and heat management.
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Unleash the full fury of your twin-turbo 2.9L V6 with the Untd. Performance Catless Downpipe for the Audi B9 RS5. Built to eliminate the most restrictive part of your exhaust system, this high-flow downpipe unlocks sharper throttle response, quicker turbo spool, and an aggressive exhaust tone that transforms your RS5 into the track-ready monster it was meant to be. If you’re chasing serious performance and raw sound, this is your first step.
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Unlock the true performance of your twin-turbo V6 with the Untd. Performance Catless Downpipe w/ Heat Shield for the Audi B9 RS4 and RS5. Engineered for maximum flow and thermal efficiency, this premium upgrade replaces the restrictive factory catalytic converters with a high-velocity, shielded system that delivers raw power, quicker spool, and an aggressive exhaust note—all while managing heat under extreme driving conditions.
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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.