I have very similar issues. I called Stop Tech a few months back and they insisted it was bad cleaner, which my small shop detailer insists he never uses and I didn't see any in his arsenal of products. My bolts look fine but the anodizing is dulled and failing along a drip line just like the pics in these posts. I'll try calling them again to see if perhaps they can just paint them.
They still work to perfection however.
F80 M3 / Mineral Grey-Silverstone / CCB
Last edited by consolidated; 01-02-2012 at 09:11 PM.