8-Piston Big Brake Kit

The SuperComp caliper, a key component of this kit, is an extreme lightweight design machined from aircraft-quality billet, weighing just over 7lbs. It features a differential bore configuration with significantly larger pistons than their ProComp calipers, and includes protection grooves for bridge tubes. Standard features on each caliper include aluminum pistons, high-temperature seals, and stainless steel brake pad wear plates. The opposed piston design enhances pad wear and caliper rigidity compared to OEM systems, while stainless steel brake lines prevent expansion under pressure. The kit utilizes a 2-piece floating disc assembly, which reduces both rotating and unsprung weight. This floating design also mitigates thermal stresses that can cause warping or cupping of the braking surface. The unique slot design on the rotor aims to reduce braking noise and efficiently expel gas and pad debris. Each rotor is heat-treated and balanced prior to shipment to ensure optimal performance. Ksport recommends slotted rotors for vehicles intended for more track use than daily driving, as opposed to cross-drilled rotors which tend to run cooler and are better suited for daily drivers. This particular kit is specified for the 2008-2016 Scion XB. Note that some retailers may apply restock or cancellation fees on returns; it's advisable to contact the seller for details and exceptions.