Wilwood GP320 Brake Kit

The Wilwood GP320 Brake Kit is a lightweight, race-focused disc brake kit built for open-wheel sprint car applications. Each kit pairs Wilwood's GP320 four-piston billet aluminum caliper with a Super Alloy steel rotor. The result is more braking torque and better thermal performance, and the kits last longer than traditional aluminum rotor systems.

Key Features:

• GP320 four-piston caliper: Four small pistons spread the pad load evenly. This improves response and extends pad life.
• Super Alloy rotor: The specially treated, lightweight steel alloy rotor is made for fade-resistant performance and durability.
• Dynamic rotor mounting: A lightweight aluminum rotor adapter and T-nut hardware isolate thermal stress and distortion at the rotor mounting points. The rotor stays flatter and runs truer, which helps reduce pad knock-back.
• Complete kit: Each kit includes the caliper, rotor, brake pads, rotor adapter and mounting hardware, as documented by Wilwood for that kit.
• Competition proven: The kits are engineered and manufactured by Wilwood Engineering, a maker of high-performance disc brake systems in the USA.

Whether you're upgrading a sprint car's braking system or replacing worn components, the GP320 brake kit gives you consistent, repeatable stopping power on the track with very little added weight.