You will most likely get the "search" answer. But honestly, this is a little vague. Depends on how much a "fortune" actually equates to in your mind. I really like the sound of the BMW PE but don't think I would spend $1200-1500 on one. You may get one for $800-1000 used. If you think that price range is a fortune, then your options are going to be swapping the mufflers for magnaflow or similar mufflers. Or to cut out the resonators, or do a muffler delete. Go to YouTube and listen to different sound clips and see what you like. Then see what your budget is. Then go from there. Oh and finding a "better" exhaust may mean different things. Better sound? Better performance? What is your idea of better?
2010 335i AW e90 Msport