Don't worry. The rac offsets and those tire sizes are very mild. 255/35's can rub at full lock due to their diameter.
'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