I see 18/15 the most popular and aggressive setup. Why haven't you'll gone for a square setup - 15 allround? I thought to maintain the stock handling it would be good to have a square setup.
Could someone enlighten me please? I am looking at getting spacers - may be 15 - but I don't want to have long term issues such as bearing failures and etc.
2007 E92 6MT - Silverstone II with /// Performance Exhaust with ACM Test Pipes and BPM Sport Stage II Dev-Tune
2011 F25 X3 3.0d