for your m3, you should compare to NS's car. do a friendly drag or something. The lowering of rpm of peak torque is very good for everyday drivability too. I think it's lowered by 1400rpm. very substantial. 370bhp makes it more powerful than the CSL. Rob's leaving this friday. If you're not happy with the mod, Rob will return the money no questions asked. In fact, for many of us, we did not even pay when we drove off. Only when the car is certainly running well, owner is satisfied, then you can consider paying him. He's also very open about how and what exact codes are changed, and he'll show you his work on his laptop. contact him if you are interested.
btw i dont work for him, obviously.
