Audi S8 D4 Catless Downpipe

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Downpipe Diameter 4 inch Cat Type Catless (no catalytic converter) Material T304 Stainless Steel Fitment Fits stock or modified vehicles – no modifications required Compatible with Audi S8 D4 (2012–2018) Constructed from high-quality, heat-resistant stainless steel High-flow 200-cell performance catalytic converter Improves exhaust flow and reduces backpressure Faster turbo spool and improved throttle response Increased power and torque gains Audi S8 D4 Catted Downpipe Unlock your S8 D4's true potential with this precision-engineered catted downpipe. Designed to replace the restrictive factory unit, it delivers improved exhaust flow and responsive power gains while maintaining emissions compliance. The integrated high-flow catalytic converter ensures street-legal performance without sacrificing durability or reliability. Experience smoother throttle response, enhanced turbo spool characteristics, and a more aggressive exhaust note. Built from premium stainless steel for corrosion resistance and longevity, this downpipe is the ideal foundation for any serious S8 D4 performance build. Show more