Superlite 4 Big Brake Front Hat Kits. Engineered for use in conjunction with OE front hubs on a variety of competition, show, custom, and sport driving applications. Billet Superlite 4piston calipers, PolyMatrix brake pads, machined aluminum hats, and 13" GT directional vane rotors exemplify award winning style and provide the ultimate in Big Brake stopping power. Born from Wilwood's 25 year tradition of building championship brake systems, SL6 Big Brake kits are the perfect complement to wheel, tire, and suspension equipment upgrades. Kit includes right and left sides. Ships within 5-7 days of order placement.