Mine's GTR35 Big Brake Rotor Kit

Mine's have developed the Big Brake Rotor Kit for use with the factory caliper.
24 slot front discs and 16 slot rear discs together with the replacement brackets
are included in the kit.
It has been developed to improve drive ability and braking performance as well.

For Front Rotor diameter : φ400 24 slot
For Rear Rotor diameter : φ400 16 slot