StopTech's High-Carbon Slotted 126 Stage 3 Brake Rotors. The only one-piece brake rotor you could buy better suited for severe use than this disc is the Cryo version of this same rotor (for $30 to $35 more).
Other than that, order these brakes if your original brakes warp or if you are racing, towing, hauling, fleet driving or running over-sized wheels and tires that are taller or heavier than stock. The slotted rotor provides the best brake pad bite of any other rotor design. Priced is for both