EBC 3GD Series Dimpled and Slotted Sport Rotors - Set of 2 EBC brake rotors now features reduced three-slot venting which provides slightly less air noise under heavy braking while still maintaining the benefits of cooler running with the full width slot design. Wide slots help brakes run up to 200 degrees cooler. The EBC 3GD Series of Dimpled and Slotted Sport Rotors Reduces brake fade under load and at speed. Rotors are designed to remove dirt, dust and debris from your vehicle's braking zone.