Originally Posted by E92inSG
Do you get any rubbing at all with the 275 upfront at that height? Full lock doesn't touch the fender liners?
The owner of the car already responded but I thought I would add a little info. I am on clubsports but my ride height is a little higher. I have 275/35/18's (Michelin PSS) on 9.5" wheels as well. I have run them at et22 without any rubbing on the fender liners even at full lock. Unfortunately the KW coilover spring showed signs of slight rubbing on the inside (slight black scuff on the spring). I then added a spacer to achieve et15. The inner rubbing was solved but the tire now slightly rubs the liner at full lock. No rubbing during compression while driving. I think the magic offset for a 275mm tire on a 9.5" wheel is probably somewhere in between et22 and et15. I will report back after I experiment one more time with et17. No matter what, negative camber is necessary to run these sizes.
'08 E90 M3 - Alpine White - Sold
'13 E92 M3 - Silverstone II - Sold
'04 E46 M3 - Jet Black - BBS E88, KW Clubsports, Brembo BBK, SuperSprint Exhaust, Recaro
'15 i3 - Laurel Gray - Why would I mod this thing?