These are the same calipers as the R33 GTST, they run the same Brake pads as all the Sumiota Calipers. These ones run 300mm Rotors, So a nice little upgrade from 285mm Rotors, They are a Direct bolton for the 300zx. This is what the Z32 should have come out with!
Direct upgrade for Na with 260mm rotors, or tt with 280 mm rotors. These use the R32 GTR non brembo 296mm rotors which is the same as R33/4 GTS-T rotors. The calipers are slightly bigger than 300ZX TT ones and are also Iron rather than alloy making them stronger (apparently). Decent upgrade for a TT, same bolt holes no dogbones needed, just need the 296mm discs or the pad will hang off the edge. Amazing upgrade for s1 NA with 260mms and smaller calipers... lico