DFC Premium Performance Brake Rotors are engineered for performance at a great value. Drilled and slotted rotors will grab more bite to the brake pads giving you shorter stopping distance especially in wet weather. The drilled holes will reduce the heat that builds on the rotor. The slots on the rotor remove brake and road debris and prevent pad glazing.Formulated with the G3000/G11H18 cast iron specification, DFC GEOSPEC Coated Brake Rotors are engineered to match OEM specifications for durability, reliability, and stability. Each rotor casting is sent to our state of the art machining facilities, where it is processed to the tightest tolerances available in the market today. Then, the rotor is prepared with a non-directional finish to promote a faster and more even brake pad bed-in, along with quieter and smoother stops. Finally, all vented rotors are 100% inspected for balance and are corrected if necessary with our state of the art electronic mill-balance process. After all of the machining processes are completed, each rotor passes a 100% inspection station that measures all critical attributes to ensure that each rotor meets OE specifications. This further guarantees that each and every rotor delivered to you is trouble free. DFC provides a 12 month - 12,000 mile limited warranty against defects in material and workmanship.