For 2007-2010 BMW 335xi, 335i xDrive Front Rear eLine Drill Slot Brake Rotors Package Includes 4 Brake Rotors Disc 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