2002 BMW M3 ‘Supercharged’

The S54 motor that came in the E46 M3 is absolutely brilliant, but producing over 104HP per liter from the factory means that BMW managed to maxed it out. The only cost-effective solution to substantially increasing the power is forced induction, which is the route that this build took. This adds a substantial amount of torque down low and additional power through the rev range. This example also includes a Dinan exhaust system to help reduce pumping losses.