Originally Posted by mocohead
Personally if I was in your situation I would install the factory Performance Suspension package, keeping the original diameter front sway bar and installing the slightly larger rear M Sport sway bar. Unless you are racing your car competitively there is no reason to destroy your street comfort for an occasional track day. My bet is the BMW Performance suspension package is probably a great compromise and will be far more comfortable than any coil over setup.
Thats what i have...It's really a great suspension kit.