Brembo 06-08 Z4 M-Coupe/Roadster Rear GT BBK 4 Piston Cast 345x28 2pc Rotor Slotted Type1-Yellow

This Brembo GT Big Brake Kit for the rear of your 2006-2008 BMW Z4 M-Coupe or Roadster includes everything you need to significantly upgrade your braking system. You get a pair of 4-piston cast aluminum calipers, two 2-piece 345x28mm slotted rotors, and all the necessary hardware to get them installed. This kit is designed to replace your factory rear brakes with a much more robust setup, offering improved stopping power and heat management for spirited driving or track use.

The calipers are constructed from cast aluminum, which helps keep unsprung weight down while providing a solid foundation for the 4 pistons. These pistons work together to apply even pressure across the brake pad surface, leading to more consistent and powerful braking. The rotors are a 2-piece design, meaning the aluminum hat is separate from the iron friction ring. This design helps reduce heat transfer to the hub and allows the iron ring to expand and contract more freely, which can help prevent warping. The Type 1 slots on the rotor surface are machined to help sweep away dust and gas that can build up between the pad and rotor, maintaining optimal friction even under heavy use. The yellow caliper finish is a distinctive visual upgrade that also signals the high-performance nature of this braking system.

Upgrading to a big brake kit like this is a substantial modification, and it's important to ensure you have the right tools and knowledge for installation, or to have a professional mechanic handle it. This kit is a popular choice for Z4 M owners looking to get the most out of their vehicle's performance, especially if they plan on track days or autocross events where braking performance is critical. The improved thermal capacity means you can brake harder, later, and more consistently without experiencing fade.