R1 Concepts CEDS10181 Eline Series Cross-Drilled Slotted Rotors And Ceramic Pads Kit - Front and Rear Package Includes 4 Brake Rotors And 8 Ceramic Brake Pads Precision Drilled Holes For Maximum Heat Dissipation Countersunk To Reduce Heat Stress And Cracks Diamond Slotted To Increase Brake Pads Bite Diamond Slots Acts As A Rotor Wear Indicator