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Well lets start here, do you ever plan on going with a supercharger? If you do, I would just hold off and save for the blower. If you dont, there are a few things you can do. We have the same car so you can check my sig for the mods I have done. Also what kind of gears do you have ? After I got my 4.10s installed the car turned into a complete beast off the line. Longtubes I also noticed gave a nice boost but if you are not installing them yourself $1500 isnt enough.
I live in baltimore md and i have 373s i do plan on getting FI eventally but not now.... i ran a 13.1 on street tires just with the tune havent ran with exhaust and intake and doing everything myself.
I live in baltimore md and i have 373s i do plan on getting FI eventally but not now.... i ran a 13.1 on street tires just with the tune havent ran with exhaust and intake and doing everything myself.
Since you have 3.73s there is no need to consider gears. If you are doing it yourself, I would go with pypes longtubes and offroad x pipe & a set of steeda under drive pulleys. I have that on mine, and the car responded well to all of it. The car pulls alot harder than it did stock, and I smoked a 2011 335i the other night without breaking a sweat