All new reproduction of Sumitomo's discontinued alumimum four (40.45mm) piston front Z32 300ZX Twin Turbo calipers for 30mm rotors. Finished in gold powdercoat and laser logos. Sold as a pair of left and right calipers with semi-metallic pads included. These popular calipers bolt directly to many 90's Nissans like S-chassis, R-chassis, Q45, etc. without any adapters as long as you pair these with a 1995 300ZX Twin Turbo rotor from your local autoparts store. Matching 2 piston rear calipers are sold separately. Lots of information is available online http://importnut.net/300zxbrakeswap.htm about the other parts you may need to perform a complete brake system upgrade. **We manufacture adapters to use these calipers on some Non-Nissan vehicles like E36, E46, GT86. Always mount with bleeders on top.