The OEM OBDI M50 Manifold, when combined with an M50 conversion kit such as the KO M50 Conversion Kit conversion kit unleashes your OBDII M3s breathing room from the OBDII choke-collar manifold.

Installs easily into your BMW E36 M3 in about 3 hours. Our kit includes all the parts needed to make the conversion. Users typically see a solid performance gain in the 3500RPM+ range and 10-30 hp. Our track car has this part on it, as well as one of our other salesmen's Z3 M Roadster conversion project car.