Engineered for use in conjunction with OE front hubs. Billet Superlite 6 piston calipers, PolyMatrix brake pads, machined aluminum hats, and 13" front and rear GT directional vane drilled rotors exemplify style and provide the ultimate in Big Brake stopping power. SL6 Big Brake Kits are the perfect compliment to wheel, tire, and suspension equipment upgrades.