and maximize output across all RPM ranges

but it will also boost engine functions and prevent your car from overheating

Lead Time: 1–2 weeks

Designed via 3D scanning for precise OEM fit

Ferrea Competition Plus Valves are trusted as one of the most dependable extreme duty valve kits available

G90 M5 Downpipes HPRBS-S14 and maximize output across allUpgrade your 2025+ G90 BMW M5 with RK Autowerks newly released G90 specific S68 downpipes, engineered for a precise OEM fit. Unlike other options on the market, these downpipes are built exclusively for the G90 platformnot compatible with previous generation M5 or M8 models. Dont risk poor fitment or performance losses with universal alternatives. Crafted from durable 304 stainless steel, these downpipes retain all factory mounting points and feature