EBC Brakes S4KF1681 S4 Kits Redstuff and USR Rotor Incl. Rotors and Pads Front Rotor Dia. 12.6 in. S4 Kits Redstuff and USR Rotor EBC Brakes S4KF1681 S4 Kits Redstuff and USR Rotor; Incl. Rotors and Pads; Front; Rotor Dia. 12.6 in.; Authorized Dealer - 100% Satisfaction Guaranteed EBC Brakes S4KF1681 Warranty: Yes