Brembo 07-13 1500 Sierra Rr GT BBK 4Pis Cast 2pc 380x32 2pc Rotor Slotted Type3-Silver

The 380x32mm, two-piece rotors included in this Brembo GT Big Brake Kit are cast from a high-carbon alloy, a material chosen for its ability to handle the heat generated during aggressive braking. This kit is specifically designed for the rear of the 2007-2013 GMC Sierra 1500, offering a significant upgrade over the factory braking system.

At the heart of this kit are the four-piston aluminum calipers. These calipers are lighter than cast iron, which helps reduce unsprung weight, and their larger piston area allows for more even pressure distribution across the brake pad. This translates to improved stopping power and better pedal feel, especially under demanding conditions. The rotors feature Brembo's Type 3 slotting pattern, which is designed to help vent gases and dust away from the pad surface, maintaining consistent friction and reducing the risk of fade during repeated hard stops. The two-piece rotor construction allows the rotor ring to expand and contract independently of the hat, which can help prevent warping and extend the life of the components.

This kit includes everything needed to install the rear GT Big Brake system, including the calipers, rotors, and necessary hardware. For optimal performance and safety, it's recommended to consult the manufacturer's installation guide for specific procedures and torque specifications. This is a substantial upgrade for Sierra 1500 owners looking to enhance their vehicle's braking capabilities for spirited driving or towing.