Audi C8 RS6 / RS7 400 Cell Catted Downpipes

Audi C8 RS6 / RS7 – EPA-Compliant 400 Cell Catted Downpipes Engineered for the 4.0T Twin-Turbo V8 • High-Flow • Compliant • Introducing Our NEW 400 Cell EPA-Compliant Downpipes for C8 RS6 / RS7 The Audi C8 RS6 and RS7 combine executive refinement with supercar-level performance, powered by the formidable 4.0T twin-turbo V8. While factory catalysts restrict exhaust flow and mute the engine’s full character, our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce backpressure, enhance turbo efficiency, and unlock a deeper, more commanding exhaust tone — all while maintaining emissions compliance standards. This upgrade forms the foundation of serious 4.0T performance. Why Upgrade to 400 Cell? EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards. Improved Turbo Spool & Mid-Range Response: Reduced restriction sharpens throttle input and power delivery. Enhanced Exhaust Character: Deeper tone with stronger turbo acoustics and more pronounced high-RPM presence. Street & Performance Balanced: Noticeable gains without compromising daily refinement. Performance & Engineering Optimized Flow Architecture: Minimizes backpressure while preserving catalyst efficiency. Mandrel-Bent Tubing: Smooth internal transitions for maximum exhaust velocity. Precision TIG Welding: Built to endure sustained high exhaust temperatures and boost levels. Direct OEM Bolt-On Installation: Utilizes factory mounting locations for straightforward installation. Engineered to Pair Seamlessly with Valvetronic Exhaust Systems Sound Transformation Stock Exhaust + Downpipes: Noticeable increase in depth and turbo presence with enhanced exhaust clarity. Valvetronic Exhaust + Downpipes: Maximum transformation — stronger presence, sharper transitions, and a true Audi Sport-inspired signature. Construction & Durability Premium high-grade stainless steel construction High-temperature resistant 400 cell catalyst cores OEM-style sensor placement for proper operation Engineered for long-term reliability under high-performance conditions Unleash the full potential of your C8 RS6 or RS7 — starting at the source. 📩 Questions or ordering assistance? customerservice@valvetronic.com