The StopTech Big Brake Kit is an ideal upgrade for high-performance vehicles. It includes a 2-piece floating rotor design, 4-piston calipers, stainless steel brake lines, and high-performance brake pads. The kit is designed to provide improved braking performance, better heat dissipation, and improved pedal feel. The kit is also designed to be a direct fit for most popular vehicles, making installation easy and hassle-free.