I bought this about a year and a half ago in addition to the EBC Brake rotor that matched my rear. So that was 4 EBC Rotors. I chose them because they had decent reviews other places and chose to just bite the bullet. within a few months the rotors were warped because I paired them with some ceramic pads. When I went to get an alignment for my car and opted for a free brake inspection, the guys told me that there was a hairline crack in the rotor which accounted for the vibration during braking. I emailed EBC and they just assumed I didn't install them correctly and had to do a "brake lathe". I'm switching back to Brembos and OEM ceramic pads very soon. These were a big waste of money.