3D Design G8X S58 / G16 M850i N63 Exhaust Valve Controller - Dual

Enhance your BMW's performance and sound profile with the 3D Design G8X M2 / M3 / M4 (S58) and G16 M850i (N63) Dual Exhaust Valve Controller. The valve controller allows you to open and close the standard BMW exhaust valves remotely at any time. The valve can be fully opened at all times if so desired, even during idling, which will significantly enhance your exhaust's sound profile.