This front system features brackets to relocated your factory caliper to allow the use of our 14 inch 2pc slot, drill, zinc plated directional rotors. The EradiSpeed+1 is a simple bolt on with no bleeding of the brakes required. By increasing rotors diameter, you increase torque and leverage of the brake. A very popular upgrade for customers increasing wheel diameter that want to improve braking, as well as a visual impact behind the open wheel. Furthermore, the directionally vaned structure helps to advance cooling efforts, and the 2pc design of aluminum hat bolted to rotor ring greatly reduces overall weight! Fitment: Designed To Be Used With 2005-2014 Ford Mustang Base Model And Mustang GT With 2-Piston Calipers Does NOT Fit GT500 Or Boss Mustangs Uses Stock Pads And Existing Calipers Requires A Minimum Wheels Size Of 18 Inches - Use Template To Verify Fitment Why Purchase the EradiSpeed+1? Direct bolt on system Features 14 inch 2pc slot, drill, zinc plated rotors Simple installation, no bleeding of the brakes required Directionally vaned structure acts like a centrifugal pump, advancing cooling efforts 2-piece design: spacegrade machine aluminum hat bolted to rotor ring, greatly reduces weight National Aerospace Standard NAS Rotor Hardware