I have a 1998 328is. Wondering what the widest wheel I could put on without being rediculous. I want to put maybe a 9" in the back and possibly a 8.5" in the front. Suggestions are appreciated as well as the info.

You can defintely do a 18x8.5 up front and a 18x9 or 9.5 in the rear pretty comfortably. You might need to roll your rear fenders depending on how low your car is and how wide of a tire you go with.
-Lance

I have an Eibach pro kit on there right now with Bilstein shocks, and my back tire is tucking about 1/2" with 17s, but I am switching to Ground Control coilovers so I can adjust everything. How hard is it to roll the fenders? I've never really got an opinion from a shop.