The DFC Geomet-coated drilled left-rear rotor for 1999–2023 Porsche 911 is a hi‑carbon alloy replacement built for consistent braking and corrosion resistance. Premium iron castings and OE vane configuration aid heat dissipation, while 100% precision mill-balancing reduces vibration. A fine-turned 16 RMS finish supports pad break-in and Geomet coating protects the rotor surface; DTV 0.10 mm and lateral runout 0.50 mm are specified maximums.
DFC 99-23 Porsche 911 Left Rear Drilled Hi-Carbon Alloy Geomet Coated Rotor