The EBC Brakes USR Slotted Rotor Sets USR1391 are a set of high-performance brake rotors designed for use on various vehicles. These rotors feature a slotted design, which helps to improve braking performance by allowing gases and debris to escape, resulting in better contact between the brake pad and the rotor. The USR1391 rotors are made from high-quality materials and are precision-machined for a perfect fit. They are also coated with a corrosion-resistant finish for durability and long-lasting performance. These rotor sets are ideal for drivers looking for improved braking power and reliability.