Got a set of these for my BMW 323ci 00, they fit perfectly but one of them had a heavy stain on the surface. My car was shaking like crazy, I changed them with no problem and the second set was fine. They rust quickly so either paint the non-braking surfaces or admire the rust while remembering the money you saved on these fine rotors. Revain worked with me on the return process as I needed a replacement before I could return the defective kit.