EBC GD SLOTTED ROTOR: MAZDA RX-7 93-95We personally use these rotors on our #26 Time Attack FC RX 7 and have had great results. 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 British castings and 100% of these are precision machined in either the UK or the USA. EBC Brakes has 14 machining centres in these two countries to