Originally Posted by
El Diablo Rojo
Forgot you had an M3. Either of those would help but I'd be shocked if you gained 80rwhp with either one or both of those mods. I've got a buddy who owns a shop back in LA that does race prep on BMW Endurance racers I could shoot him an email and ask what he suggests if you want.
I'm thinking FI would be the only real way to get there. The Racers Market is here in ATL and has a pretty good reputation at prepping cars. I'm just worried if I go FI I'll end up needing to open the motor up and end up with new rods, pistons, rings, etc...
The cars got 164k miles on it. If I boost it I fear something will pop. Decisions decisions...
FI = Forced Induction.