S4 Kits Redstuff and USR Rotor. S4 Kits Redstuff and USR Rotor; Rear; FMSI Pad No. D771; Solid; 5 Bolt Holes; 308mm Dia.; 64mm Height; 12mm Thick; 62mm Center Hole Dia.;. Save 15% over cost of buying separate parts with this quality pad and rotor kit which includes pads rotors pads rotors and caliper lube.