Took a bit of grinding on the edges to get them to fit my 18" 350z wheels, but they do. I've got about 3mm clearance, so little rocks and gravel get caught in between and scratch up my rims and sound terrible when slow, but these brakes are awesome! Braking deep all day with no fade at all.
Here is the refinished caliper, with my 'orange' touch to them, so they match my street wheels, just satin instead of glossy.
