EBC's S4 Redstuff and USR rotor kit pairs high-friction Redstuff pads with precision-machined USR slotted rotors. The rotors feature fine slotting and a thermic black anti-corrosion coating, while the pads offer low dusting. Sold as a matched kit, it provides a direct-fit upgrade intended for spirited street driving with improved rotor longevity and quieter braking characteristics.
EBC S4 Brake Pad and Rotor Kit