I bought these discs for both front and rear discs. They fit like an OEM in my 2004 Acura (Honda) TL 6-SPD, but look and work better than the OEM rotors. I use Brembo pads on the front and Akebono Ceramic on the rear. As the pads are walked through, the zinc coating will wear away and the beautiful black color will turn to traditional silver, but they still look sharp with slots. I'm amazed at how proud they are of their products. Their quality control is as strict as that of Japanese manufacturers. UPDATE 9/30/18: The first pair was worn below the thickness limit after 5 years of use and even after looking at StopTech, DBA and PowerStop products I decided again to go with EGR rotors. USR rotor and OEM Brembo pads stop my TL effortlessly.