I have 2 sets of RS Technik 12mmm spacers installed on my car and I'm rubbing a little bit in extreme driving (i.e. track). They come with black extended bolts and have been on the car for less than 1000 miles.
Ideally I'd like to swap for 10mm spacers with extended bolts.
I can also sell straight up - $160 shipped for all 4 spacers or $80 per set of 2.