A new tuning kit for the BMW 1-Series M Coupe has been released by the guys at Manhart Racing. Hit the jump to check out the video of the week and see this quick BMW in action. The ultimate driving machine is powered by a 3.0-liter twin turbo six cylinder engine that has been modified with a new sport exhaust system and reprogrammed ECU. With these additions, the BMW 1-Series M now produces 420 PS, up from the factory 340 PS.
