Hey, I can give you some suggestions. Theres a few companies that make exhausts for your car...theres Supersprint, Remus, Eisenhaus, DINAN, Racing dynamics, AC Schnitzer, etc, etc...The most popular are the Remus and the Supersprint for our cars, I was looking at the Eisenhaus, they seem pretty good...i don't know how they compare to the supersprint or the remus, but the thing i liked about them was the options you have. You can choose from sport, high performance and race setup. DINAN is too $$$ and its not any different from the others except, there parts won't void the factory warranty on your car. As far as intakes go, i like ECIS, but theres others also...check it out
www.ecisbmw.com ...hope this helps. Good luck.
