The EBC 11+ BMW Z4 3.0 Twin Turbo iS (E89) GD Sport Rear Rotors are a high-performance brake upgrade for the BMW Z4 3.0 Twin Turbo iS (E89). These rotors are designed to provide superior braking performance and increased durability under extreme conditions. Featuring a unique two-piece design, the rotors are made from high-grade cast iron and feature an advanced slotted and dimpled surface for improved pad bite and heat dissipation. The GD Sport rotors also feature EBC's patented SD system for improved braking performance and reduced wear. This upgrade is the perfect choice for those looking to take their BMW Z4 3.0 Twin Turbo iS (E89) to the next level.