The DFC drilled Geomet-coated rotor for 2006–2008 BMW Z4 left front uses premium G3000/G11H18 iron castings and an OE vane layout to assist heat dissipation. Each rotor is precision mill-balanced and fine-turned to a 16 RMS finish for better pad break-in and reduced vibration. Geomet coating provides corrosion resistance and the rotor is held to tight DTV and lateral runout specifications.
DFC 06-08 BMW Z4 Left Front Drilled Hi-Carbon Alloy Geomet Coated Rotor