OEF3 calipers have whole new caliper body and components, and provide the best braking performance. OEF3 New Disc Brake Caliper. Autopart International. This part generally fits Mazda vehicles and includes models such as Miata with the trims of 10th Anniversary Convertible 2-Door,Ba se Convertible 2-Door,LS Convertible 2-Door,M Edition Convertible 2-Door,Mazdaspeed Convertible 2-Door,SE Convertible 2-Door,Shins en Convertible 2-Door,STO Convertible 2-Door.