Audi 4.0T Catless Downpipe - C7 S6/S7/RS7 & D4 A8/S8 - ARM Motorsports

The OEM 4.0T downpipes include large, restrictive catalysts that limit exhaust flow and reduce power output. Replacing your OEM downpipes with ARM 4.0T Downpipes eliminates these restrictions, allowing for improved exhaust flow and performance gains. OEM downpipes also have a crossover design, forcing exhaust gases through long, convoluted pathways with multiple sharp turns. ARM 4.0T Downpipes streamline this process by maintaining a same-side design, significantly improving airflow, reducing turbo lag, and enhancing throttle response. Gain up to 37whp / 42wtq Faster Turbo Spool Improved Exhaust Note Fully Reversible Catted Version Available Premium Construction The ARM 4.0T Downpipes are constructed from SS304 stainless steel, ensuring exceptional durability and long-lasting performance for your Audi 4.0T. Collector Design: Features a robust 4.4" x 3" collector welded to an OEM-style 5-bolt flange, compatible with all 4.0T turbocharger upgrades. Flex Section: Built-in