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The DFC Geomet-coated drilled left-front rotor for 2009–2023 Porsche Cayman is a hi‑carbon alloy replacement designed for effective heat management and corrosion resistance. It uses premium G3000/G11H18 iron castings and OE-style vanes to promote cooling, is precision mill-balanced to reduce vibration, and features a fine-turned 16 RMS finish for break-in along with Geomet coating; DTV 0.10 mm and lateral runout 0.50 mm max are specified.
DFC 09-23 Porsche Cayman Left Front Drilled Hi-Carbon Alloy Geomet Coated Rotor
