you can buy 5 lug convertion spacers that will let you mount 5 lug rims on your e30 without buying M3 brakes and shit. i was wondering what all is involved in completing the 5 lug conversion on my 87 325is. i know it has to do something with an e30 m3. i am quite mecanicly inclined. i just need to know what parts, how much, and if i have to modify or fabricate anything? thanks everyone. wayne