Manufacturer SKU: POR.992.TUR.FF.400C.BR Porsche 992 Turbo / Turbo S – EPA-Compliant 400 Cell Catted Downpipes Precision Engineered for the 3.8L Twin-Turbo Flat-Six • High-Flow • Compliant • Introducing Our NEW 400 Cell EPA-Compliant Downpipes for 992 Turbo The Porsche 992 Turbo and Turbo S represent the pinnacle of modern forced-induction performance. While the 3.8L twin-turbo flat-six delivers exceptional power from the factory, restrictive catalysts limit exhaust efficiency and mute the engine’s true character. Our NEW EPA-compliant 400 cell high-flow catted downpipes are engineered to reduce backpressure, enhance turbo responsiveness, and refine the exhaust signature — all while maintaining emissions compliance standards. This upgrade elevates performance while preserving the precision expected from Porsche. Why Upgrade to 400 Cell? - EPA-Compliant 400 Cell High-Flow Catalysts: Increased exhaust efficiency while maintaining compliance standards. - Improved Turbo Response: Reduced restriction enhances spool characteristics and throttle precision. - Enhanced Exhaust Presence: Deeper tone with improved clarity at higher RPM. - Maintained Drivability: Noticeable gains without sacrificing refinement or daily comfort. Engineering & Performance - Optimized Flow Architecture: Minimizes backpressure while preserving catalyst efficiency. - Mandrel-Bent Tubing: Smooth internal transitions for consistent exhaust velocity. - Precision TIG Welding: Built to withstand extreme exhaust temperatures and sustained boost levels. - Direct OEM Bolt-On Installation: Utilizes factory mounting locations for seamless installation. - Engineered to Pair with Valvetronic Exhaust Systems Sound Character - Stock Exhaust + Downpipes: Subtle increase in depth and presence with improved turbo clarity. - Valvetronic Exhaust + Downpipes: Sharper response, stronger turbo acoustics, and a more motorsport-inspired tone while retaining Porsche composure. 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 Elevate the performance and character of your 992 Turbo — engineered with precision, starting at the source. 📩 Questions or ordering assistance? customerservice@valvetronic.com