The DFC drilled Geomet-coated rotor for the 2015–2017 Porsche 911 left front is cast from premium G3000/G11H18 iron and retains an OE vane layout to help dissipate heat. Precision mill-balancing and a fine-turned 16 RMS finish improve initial rotor and pad break-in, while Geomet coating guards against corrosion. DTV is limited to 0.010 mm and lateral runout to 0.050 mm.
DFC 15-17 Porsche 911 Left Front Drilled Hi-Carbon Alloy Geomet Coated Rotor