This particular car is producing a bit less horsepower but a bit more torque with 676 horsepower and 532 lb-ft of torque at the wheels. The supporting mods between the cars are likely different and possibly the turbocharger as well although that is something Maximum PSI would have to clarify.
The modifications to the SMG E46 M3 are:
- Maximum PSI Stage 2 turbo kit
- Maximum PSI 3 inch exhaust system
- Stock DME tuning
- MS109 Fuel
For those wondering, Stage 3 ups the power figures to over 800 wheel horsepower but that requires a built motor and the Stage 3 is still being worked on as we understand it.