This E46 M3 has a 3.4 liter stroked S54 engine with balanced & blue printed block, custom CP pistons and rings, Eagle rods, Motorsport forged steel crank and a ported and polished head with 3-angle valve job. The compression is 9.5:1. It is fitted with a Vortech supercharger that makes 9 psi of boost at 7800 RPM. It has a custom intake plenum with integral air to water after cooler and an additional injector per cylinder.
The PSC1-003 is used to fine tune the fuel trims in the closed loop region and limit the MAF signal in boost. A custom version of the AIC1 is used to drive the 6 extra injectors which provide the additional fuel needed to support the high output of this engine.
This engine was dyno tuned for 451 horsepower at the wheels which equates to over 530 hp at the crank.