Good luck because I dont think you'll be able to keep up with the 330. I've got the mods listed in my sig on my 325Ci 5-speed, and it still can't even come close to keeping up with my cousin's 04 330Ci 6-speed.
It's really difficult to get anywhere with an auto 325 to begin with. The car (IIRC) runs well over 16 seconds in the 1/4 and takes around 8 or so to get to 60. The manual version of the car runs low 15's and does 0-60 in about 7, and even then still loses to 330 auto's in most cases.
If I were you, I would ignore the engine (unless you do forced induction) and put money into looks and suspension and then challenge the 330's where you have a fair match against them...handling. :thumbup:
A forum community dedicated to BMW E46, E90, and F30 owners and enthusiasts. Come join the discussion about M performance, turbo kits, engine swaps, builds, modifications, classifieds, troubleshooting, maintenance, and more!