Product Details

This big brake kit allows for full functionality and flow of big vented 11.75" rotor compatible Thunder Roadster and GTR Thunder Roadster big brake system, while still staying within the GTR rules. If you are running a 3.75" 4 pistons Wilwood caliper kit these while bolt directly on without the need to purchase new front caliper. 

Includes Front and rear calipers, Rear caliper brackets, front caliper brackets, front rotors, front hats, and rear outrigger shock mounts.

Race pads front and rear as well as aluminum master cylinder and -3 master cylinder fittings included. 


"8.7.1 Brake Rotors Only steel rotors (not drilled or reduced in diameter) are permitted on the front or rear. The minimum permitted thickness of the front brake rotor is 8mm (5/16) wide; the rear rotor minimum thickness is 1/4”. The minimum permitted diameter is 10 inches and the maximum is 12 inches."

"11.12 Brakes In place of stock Toyota calipers in the front, a 4-piston Wilwood Dynalite caliper may be installed with either stock rotors or corresponding Wilwood vented rotors and hats. On the rear, either the stock Wilwood 2-piston calipers or the Wilwood Dynapro Narrow Mount 4-piston calipers are allowed using the stock rear brake rotors as provided by USLCI."