This kit is configured for dedicated road racing on all 2006-2015 Mazda MX-5 Miatas and requires 17” or larger wheels designed with additional inside clearance to accommodate the larger than stock brake package. The six piston FNSL6R/ST radial mount calipers used in this kit feature a forged aluminum body with a Type III Mil-Spec hard anodized, medium gray color finish. Hard anodizing provides superior wear resistance in the piston bores, and high resistance to abrasion and corrosion throughout. Thermlock® pistons are used to reduce heat transfer from the pads to increase fade resistance, and to extend service life by decreasing temperatures in the caliper body, fluid, and seals. Internal damper springs and controlled retraction, high-temperature piston seals assure consistent pedal height from start to finish. Spec37 alloy, GT competition series 12.88” diameter directional vane rotors are fixed mounted to the OE hubs with weight saving forged aluminum hats. Unsprung and rotating weight are minimized while providing high cooling efficiency and rugged durability with thermal stability in sustained high heat competition. Mounting brackets, including all premium grade fasteners, secure the calipers in the stock location without modifications. This race winning system is completed with high temperature, high friction, endurance compound race pads selected specifically by application. Stainless steel braided flexlines are includedd for the installation.