EVOLUTION M | Midpipe exhaust modification | BMW G2x M340i / M440i

This mid-pipe exhaust modification essentially deletes the OPF. It completely transforms the sound of your BMW by removing the restricting factor, finally releasing the B58's beautiful soundtrack!

***Requires an ECU tune (recommended) or OPF deleter unit which removes the OPF fault codes (since it's gone).

Comes with all necessary OEM clamps.