Check the listing for details. EBC S4KR1300 S4 Kits Redstuff Pads and USR Rotors. Condition: New, Made in United States. Listed at 387.99 USD. Part Number : S4KR1300. High efficiency EBC pads with patented EBC Brake-in coating and premium rotors with thermic anti rust coating, fully balanced and run-out tested for smooth braking. Our dedication to the automotive community has propelled us to impressive heights.