The DFC Geomet-coated front drilled rotor for 2022–2025 Audi S3 (USA/Canada) is a hi-carbon alloy direct-fit replacement that restores front braking performance with drilled ventilation. Engineered from G3000/G11H18 iron castings and OE vane geometry for effective heat dissipation, the rotor is precision mill-balanced to minimize vibration, fine-turned to a 16 RMS finish to improve break-in, and Geomet-coated for corrosion protection. DTV ≤0.10 mm; lateral runout ≤0.50 mm.

DFC 22-25 Audi S3 (USA/Canada) Front Drilled Hi-Carbon Alloy GEOMET Coated Rotor