The DFC GeoSPEC coated drilled rotor for the left rear of 2021–2025 BMW M4 is a direct-fit replacement delivering improved corrosion protection and consistent braking. Ready to install without pre-degreasing, it’s precision cut and mill-balanced for smooth, vibration-free stops. Constructed from premium G3000/G11H18 iron and finished superior to conventional zinc, the non-directional face promotes faster break-in and reliable long-term performance.
DFC 21-25 BMW M4 Left Rear Drilled GeoSPEC Coated Rotor