EBC GD SLOTTED ROTOR: MAZDA RX-7 86-92We personally use these rotors on our #26 Time Attack FC RX 7 and have had great results. These are for the 5 lug, 4 piston caliper brakes, and vented rear rotors. They will not fit the 89 91 single piston caliper, non vented rear rotor cars. Choose from EBC plain non drilled rotors or sport rotors in two choices wide aperture 3GD series for cooler running or new SUPER SILENT Ultimax USR slotted series. On a global scale Most EBC rotors are made from