The EBC Brakes USR Slotted Rotor Sets USR1156 are high-performance brake rotors designed for use in a variety of vehicles. These rotors feature a unique slotted design that helps to dissipate heat and reduce brake fade, providing improved braking performance. They are made from high-quality materials and are precision-machined for a perfect fit. These rotors are suitable for both street and track use, and are an excellent upgrade for those looking for improved braking performance.