When your vehicle does more than take you to and from work - you need the superior stopping power of ACDelco Performance Brake Rotors. Rotors feature specific vane configurations for increased air flow and optimal heat dissipation. Product Features:Special polymer binding coating that acts as an armor against the elements for durabilityDamped iron metallurgy to reduce noise, vibration and heatNo machining required - ready to be installed right out of the boxMill-balanced for proper rotor functionQuality validated for proper metallurgy and correct brake plate thickness