RVNG G8X/S58 HydroFlow 5" Race Downpipes

Upgrade your 2020+ BMW G80 M3, G82/G83 M4, or G87 M2 with the RVNG 5" Hydroformed S58 Downpipes, engineered for maximum exhaust flow, reduced restriction, faster turbo spool, and a more aggressive exhaust tone. Designed specifically for the BMW S58 twin-turbo engine, these high-flow downpipes take exhaust performance to the next level.

Unlike traditional 3" and 3.5" S58 downpipes, the RVNG design utilizes a massive 5-inch hydroformed inlet, providing significantly greater cross-sectional area to improve exhaust gas flow and reduce turbulence directly after the turbochargers. A 3-inch downpipe provides approximately 7.07 square inches of cross-sectional area, while a 3.5-inch downpipe provides approximately 9.62 square inches — the RVNG 5-inch inlet provides approximately 19.63 square inches, offering substantially greater flow capacity for high-performance S58 applications.