EBC S4 Redstuff Pads & USR Rotor Kit is designed for maximum performance and durability. It features advanced slotted design for improved cooling and increased pad bite. The rotors are made from premium grade cast iron for superior strength and resistance to warping. They are also coated with a corrosion-resistant black zinc finish for long-lasting protection. These rotors are perfect for high-performance vehicles and will provide you with the stopping power you need.