All new reproduction of Sumitomo's discontinued alumimum four (40.45mm) piston front Z32 calipers for 30mm twin turbo spec rotors. Finished in gold powdercoat and laser logos. Sold as a pair of left and right calipers with race basic pads included. Pair these with a Twin Turbo Z32 rotor from your local autoparts store & match the rears which we sell separately. Lots of information is available online about the other parts you may need to perform a complete brake system upgrade. *MAY BE USED ON BRZ WITH OUR KNUCKLE and a 05-09 Legacy GT rotor (316x30mm $15 generic to $85ea for stoptech on rock auto). Always mount with bleeders on top. Does not include mounting bolts.