The RVNG G8X Equal-Length Midpipe is engineered to lift your S58 M3 or M4's performance and sound at once — optimizing exhaust flow, cutting back-pressure, and delivering an aggressive yet refined tone.Key features Built from premium SS304 stainless for durability with reduced weight Equal-length design balances flow from both turbochargers for peak efficiency and a unique, high-pitched note Improved throttle response and horsepower from optimized flow Direct bolt-on fit with OEM or aftermarket components Premium finish that resists heat discoloration FitmentBMW G80 M3 and G82 / G83 M4 (S58).Emissions disclaimer: This product is intended for off-road, race, or closed-course competition use only and is not legal for use on pollution-controlled vehicles operated on public roads in most states and provinces. You are responsible for compliance with all applicable emissions laws. Please check your local laws before purchase and installation.Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email [email protected].