enjoy with 4 pistons caliper and rotor..... ขนาดจาน ชัดๆ R32 T : 280mm x 26mm (single pot sumitomo caliper) R32 GTS-T (early) : 280mm x 26mm (single pot sumitomo caliper) R32 GTS-T type m : 280mm x 30mm (4 pot sumitomo caliper) R32 GTR : 296mm x 32mm (4 pot sumitomo caliper) R32 GTR VSPEC : 324mm x 30mm (4 pot brembo caliper) R33 GTS-25 : 280mm x 26mm (single pot sumitomo caliper) R33 GTS-4 : 280mm x 26mm (single pot sumitomo caliper) R33 GTS-25T : 296mm x 30mm (4 pot sumitomo caliper) R33 GTR : 324mm x 32mm (4 pot brembo caliper) R33 GTR VSPEC : 324mm x 30mm (4 pot brembo caliper) R34 GT : 296mm x 30mm (4 pot sumitomo caliper) R34 GTT : 310mm x 30mm (4 pot sumitomo caliper) R34 GTR : 324mm x 32mm (4 pot brembo caliper) Z33 NA : 324mm x 32mm (4 pot brembo caliper) Z32 NA : 280mm x 26mm (4 pot sumitomo caliper) Z32 TT : 280mm x 30mm (4 pot ali sumitomo caliper) S14, S15 : 280mm x 30mm (4 pot sumitomo caliper)