well the M3 is no 325Ci, it is a whole differant animal. Bigger engine, different intake, differant exhaust, differant tranny, differant rear end, differant suspension. Thats like comparing a mustang to a farrari. (Im not comparing a mustang to BMW either)
You cant really make it into an M3 but you can mod it up good enough to suit your needs. However, its still an automatic. Just my personal opinion, auto's dont have enough power for me. I like to feel the power when I switch gears. Maybe someone on here has a modified auto that can give you better experiences with that. I would stick with a manual if your looking for power though.
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