Brembo 06 330xi/06-12 325xi/328xi Front GT BBK 4 Piston Cast 2pc 355x32 2pc Rotor Slotted Type1-Red

The 355x32mm two-piece rotors in this Brembo GT Big Brake Kit are cast iron, chosen for their ability to handle heat and provide a solid foundation for consistent stopping power. This kit is specifically assembled to upgrade the front braking system on select BMW 3 Series models, including the 2006 330xi and 2006-2012 325xi and 328xi. It's designed for drivers who push their vehicles hard and demand more from their brakes than the factory setup can offer, especially during spirited driving or track use.

At the heart of this kit are the four-piston calipers, which apply more even pressure across the larger rotors compared to smaller factory calipers. This increased clamping force, combined with the slotted rotor design, helps to dissipate heat and clear away brake dust and gasses. The Type 1 slots are a specific pattern chosen by Brembo to balance performance and rotor life. The two-piece rotor construction, with a cast iron friction surface bolted to an aluminum hat, helps reduce unsprung weight and allows for better thermal management by isolating heat between the two components.

Installing a Big Brake Kit like this is a significant upgrade that changes how your car feels under braking. It's important to note that this kit is designed as a complete system, and all components are engineered to work together. You'll want to ensure you have the necessary tools and potentially refer to Brembo's installation guide for the specific torque values and procedures to get the most out of this high-performance braking system.