"Wearever Rotors are designed to meet or exceed original equipment design delivering superior stopping power. Proper harmonic design and non-directional finish that eliminates noise and enhances pedal feel. Wearever Rotors are designed to dissipate heat helping to eliminate brake fade and increase the life of your pads. Ready to install out of the box to save you time. Product Features:Manufactured to exacting quality and dimensional specifications for Superior Stopping PowerExceeds ISO manufacturing guidelines. (International Organization for Standardization)OE vane configuration to dissipate heat, increasing pad life.Proper harmonic design helps to reduce brake noise. Non-directional finish for less break-in time and reduced brake noise.Ready for immediate ""out-of-the-box"" installation (after cleaning)Advance Auto Parts Rotor Tips:Recommend using Wearever Brake Clean to remove residual manufacturing oils prior to installation.Always use a torque wrench to tighten wheel bolts to the manufacturers'' specifications to prevent pedal pulsation.Always replace rotors in pairs to improve stopping power. Most Brake Rotors products are available for in-store pickup from Advance Auto Parts."