Having anonymously developed the BMW power trains for decades, Manhart is finally storming the tuning charts with sensational compressor and V10 reconstructions of his M3 E91 Touring with V10 motor. And now for the current M3 generation, Manhart offers a 3 stage power package, developing the eight-cylinder high speed motor to up to 655 HP. The first Manhart power stage starts with a small compressor and a supercharging pressure of 0.35 bar, which... 
