Ford Racing Brake Upgrade Kits will turn your 2005-Up Mustang GT into a braking machine using 2007 Mustang GT500 components. Kits include front 14'' diameter rotors, 4-piston Brembo calipers, Mustang GT500 rear brake pads to be used in the factory rear Mustang GT calipers, and a 4-piece Goodridge SS brake line set. 18'' Diameter wheels must be used for sufficient caliper clearance.