StopTech Drilled & Slotted Rotors (Front Pair), 05-07 Cobalt SSCross drilled or drilled and slotted brake rotors prevent glazing of the pads, add bite and improve wet and dry braking performance. StopTech rotors have a durable black coating on the non swept areas of the rotor to prevent unsightly corrosion, and quality is assured as the rotors are manufactured to meet or exceed all OE specifications. Good for street and autocross. Not for extended track sessions. All StopTech performance rotors feature our