Brembo 19+ 330i Rear GTS BBK 4 Piston Cast 380x28 2pc Rotor Slotted Type1-Black HA

The 380x28mm two-piece rotors in this Brembo GTS Big Brake Kit are a key component, featuring a Type 1 slotting pattern designed to help clear dust and gas away from the pad surface. This helps maintain consistent braking performance, especially during demanding driving conditions. This kit is specifically built for the rear of the 2019 and newer BMW 330i, offering a significant upgrade over the factory braking system.

At the heart of this kit are the four-piston cast aluminum calipers, finished in a striking black HA (Hard Anodized) coating. This finish not only looks good but also adds durability and helps dissipate heat. The two-piece rotor construction, with its floating hat design, allows for thermal expansion without inducing rotor stress, which can lead to warping. This design also helps reduce overall unsprung weight compared to a traditional one-piece rotor.

When you're looking to improve your 330i's stopping power, especially if you plan on more spirited driving or track use, a comprehensive kit like this from Brembo makes a lot of sense. It includes everything needed to upgrade your rear brakes, ensuring a matched system that works together for optimal performance and safety. Remember to consult the manufacturer's installation guide for specific details on mounting and break-in procedures.