Brembo 15-18 M3 Excl CC Brake Rr GT BBK 4Pis Cast 345x28 2pc Rotor Drilled-Black

This Brembo Rear GT Big Brake Kit gives you a complete set of components to upgrade your 2015-2018 BMW M3's rear braking system. Inside the box, you'll find a pair of Brembo's 4-piston GT calipers, two 345x28mm two-piece rotors that are drilled for improved heat dissipation, and all the necessary hardware to get them installed. This kit is designed to replace your factory rear brakes with a more robust setup, offering a significant improvement in stopping power and heat management, especially during spirited driving or track use.

The calipers are cast aluminum, which keeps them strong yet relatively lightweight. The two-piece rotor design is a hallmark of high-performance braking systems; it allows the rotor ring to expand and contract independently of the hat, reducing the risk of rotor warping under extreme heat. The drilled surface on the rotors helps to vent gases and heat away from the pad surface, maintaining consistent braking performance even under heavy load. Brembo is well-known for their braking technology, and this GT kit represents their commitment to performance and durability. The 4-piston design offers increased clamping force over smaller calipers, translating to more effective braking.

When installing a big brake kit like this, it's important to ensure you have the correct tools and follow the manufacturer's instructions carefully. While this kit is designed as a direct replacement for the factory rear brakes on the specified M3 models, it's always a good idea to double-check compatibility with any aftermarket wheels you might be running, as larger calipers and rotors can affect wheel clearance. This kit is a substantial upgrade for anyone looking to maximize their M3's braking capabilities.