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! 
Includes: 
- 2 BMW OEM clamps that connect the midpipe to the stock silencer
- 1 BMW OEM gasket & clamp that connects the downpipe to the midpipe
- 2-piece Evolution M OPF Delete midpipe with connecting clamp

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