Brembo 08-13 M3 (E90/E92/E93) Rear GTS BBK 4 Piston Cast 380x28 2pc Rotor Drilled-Black HA

The 380x28mm two-piece rotor design in this Brembo GTS Big Brake Kit is a key feature, allowing for better heat management and reduced unsprung weight compared to a traditional one-piece rotor. This kit is specifically built for the 2008-2013 BMW M3 models (E90, E92, and E93 chassis), offering a significant upgrade over the factory braking system. The four-piston cast iron calipers are designed to provide strong, consistent stopping power, essential for a performance vehicle like the M3.

Brembo's GTS kits are known for their robust construction and performance focus. The calipers are cast iron, a material chosen for its durability and heat absorption capabilities under demanding conditions. The rotors are drilled, which helps to dissipate heat and gases, improving braking performance, especially during repeated hard stops. This kit includes everything needed to upgrade your M3's rear braking system, ensuring a comprehensive and effective enhancement.

When installing a big brake kit like this, it's important to ensure all components are properly seated and torqued according to Brembo's specifications. The two-piece rotor design means the hat and rotor ring are separate, allowing for expansion and contraction with heat without inducing rotor warp. This attention to detail in the design contributes to the kit's overall effectiveness and longevity, making it a solid choice for M3 owners looking to maximize their car's braking capabilities.