RVNG built this valved system for the G8X because the platform isn't known for sounding its best from the factory — and after extensive testing, this is the setup they landed on as the best-sounding and best-performing on the market. At its core is a 4.1" single midpipe with a built-in X-pipe that feeds the muffler. Merging both turbos into a single pipe makes spool dramatically louder and gives a deeper, less raspy tone, while the built-in X-pipe adds a more exotic edge.

Features

• Constructed from high-quality SS304 stainless steel
• 24 lbs lighter than OEM in steel, or 60 lbs lighter in titanium
• Fully clamp-on — no welding required
• 100% reversible — return to stock anytime
• Electronic exhaust valves for factory-like operation, compatible with aftermarket valve controllers
• Extended exhaust brace for added clearance
• 20 wtq gained over stock

Fitment

2021+ BMW G80 M3 and G82 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 support@korespeed.com.