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- Untd. Performace Catless Downpipe - Audi A3 2.0T TT Mk2 - VW GOLF 2.0T MK5 MK6
- Untd. Performance Catless After Downpipe - Porsche Panamera 971 2.9T 2018
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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.
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Unlock the true potential of your Audi S6/RS6 and S7/RS7 C7 with the Untd. Performance 200 Cell 3″ Downpipe + Mid-Pipe. Specifically engineered for the 4.0T twin-turbo V8, this high-performance downpipe and mid-pipe combination provides significant power gains, faster turbo spool, and an aggressive exhaust sound, all while maintaining a level of emissions compliance with the 200-cell high-flow catalytic converters. This premium upgrade improves exhaust flow and reduces backpressure, allowing your V8 engine to breathe more freely, delivering exceptional throttle response and a thrilling driving experience.
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For RS owners who want real power without going fully catless, the Untd. Performance 200 Cell Downpipe is the perfect balance of flow, sound, and street-friendly performance. Designed for the twin-turbo 4.0T V8 in the Audi C8 RS6 and RS7, this high-performance downpipe replaces the restrictive factory setup with a premium 200 cell sport catalytic converter—unlocking sharper throttle response, stronger midrange torque, and a deeper, more aggressive tone.
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Strike the perfect balance between performance and drivability with the Untd. Performance 200 Cell High-Flow Catted Downpipe w/ Heat Shield for the Audi C8 RS6 and RS7. Designed for enthusiasts who want serious gains without going fully catless, this downpipe replaces the factory units with ultra-efficient 200 cell high-flow catalytic converters—delivering major improvements in flow, sound, and power while maintaining a more refined tone and improved emissions compatibility.
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Maximize the performance potential of your Audi S6, RS6, S7, or RS7 (C7) with the Untd. Performance 3″ Catless Downpipe. Engineered specifically for the high-output 4.0T twin-turbo V8, this race-inspired upgrade features a full 3-inch diameter for uncompromising flow, quicker turbo response, and serious power gains. Whether you’re chasing dyno numbers or building a street-dominating machine, this downpipe brings the sound and performance you crave.
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Take your Audi S6, RS6, S7, or RS7 (C7) to the next level with the Untd. Performance 3″ Catless Downpipe + Mid-Pipe w/ Heat Shield. This full turbo-back flow upgrade is built for maximum performance, combining a high-flow catless downpipe and matching mid-pipe section in one seamless system. Designed for the 4.0T twin-turbo V8, this combo eliminates restrictive factory components, enhances throttle response, and transforms your exhaust note—all while integrated thermal shielding keeps engine bay temps under control.
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This Untd. Performance Braided flex downpipe features 3″ tapered to 2.5″ piping to achieve horsepower gains across the entire RPM range on 2.7L Audi S4/RS4 (B5) and A6/Allroad (C5). Catalytic converter is removed to eliminate restrictions on exhaust flow.
The unique hybrid design of the inlet flanges enables direct bolt-on for stock K03 turbo, upgrade K04 turbo and custom built RS6 turbo. -
Crank up the intensity and let your twin-turbo V8 breathe free with the Untd. Performance Catless Downpipe for the Audi C8 RS6 and RS7. Designed for unrestricted power and unfiltered sound, this downpipe removes factory catalytic converters to deliver maximum flow, faster turbo response, and a raw exhaust note that transforms your RS into a true performance weapon.
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Unleash the full fury of your twin-turbo 4.0T V8 with the Untd. Performance Catless Downpipe w/ Heat Shield for the Audi C8 RS6 and RS7. Designed to eliminate restriction and optimize exhaust flow, this downpipe not only wakes up your powerband but brings out the raw, aggressive character your RS was built for. Integrated thermal shielding ensures performance stays consistent, even under extreme heat and heavy load.