FNSL6R billet Forged six-piston calipers with 13” or 14” rotors deliver the ultimate combination for braking power and style in this group of kits engineered for Pro-Touring vehicles . Built exclusively for 17” and larger wheels, FNSL6R kits enhance tire and suspension upgrades with large diameter dynamic mounted Spec 37 rotors, BP-20 performance pads. Kits come with radial mount brackets, bolt kits and hardware to insure a secure and precise fit.