The EBC 11-16 BMW Z4 E89 GD Sport Front Rotors are a high-performance replacement rotor set designed to upgrade the braking performance of the BMW Z4 E89. This set of rotors feature a unique dimpled and slotted design that dramatically improves stopping power, reduces brake fade, and eliminates vibration and noise. The rotors are made from a special alloy that is both lightweight and durable, and are coated with a corrosion-resistant finish for long-lasting use.