The DFC Geomet-coated drilled rotor for Audi TT Quattro RS (2012–2013), front, is a hi-carbon alloy drilled rotor with a protective Geomet finish. Manufactured from premium G3000/G11H18 iron castings and using an OE vane configuration, it supports enhanced heat dissipation. The rotor is precision mill-balanced, fine-turned to 16 RMS for improved pad break-in, and held to strict DTV and lateral runout specifications to minimize vibration.
DFC 12-13 Audi TT Quattro RS Front Drilled Hi-Carbon Alloy Geomet Coated Rotor