Go fast and stop faster with SuperForge’s High Performance Big Brake Kit exclusively for the Ford Explorer ST. Get serious braking power when you need it most and peace of mind when you don’t.  This SuperForged Big Brake Kit Our was specifically designed for the Ford Explorer ST and provides an immediate and noticeable upgrade in performance and style. We tested and tweaked our system for over a year-and-a-half, through 4 seasons, to ensure that if we offered a performance braking system that could handle multiple duty levels. The result is a system that not only handles its business on the street during daily driving -  but also performs just as well as more expensive, over-engineered 8 piston kits. Make no mistake, this braking system was designed for track performance as well as daily safety.  It all start with massive 405mm front and 380mm rear two-piece floating ventilated discs - you can choose a drilled, slotted or a drilled-and-slotted surface. Our rotors were designed and tested to minimize fade and dissipate heat under extreme braking situations across all 4 seasons. Our 6-piston front, 4 piston rear and single piston EPB mono block calipers are precision machined from lightweight aircraft quality billet aluminum and feature heavy duty aluminum pistons mated to temperature resistant seals. This translates into a dramatically increased braking experience that delivers steady, even and predictable force to the rotors.  Also included are new stainless steel kevlar reinforced brake lines. When it comes to pads, we include ceramic graphite pads that are low noise, low dust and street ready. Bolting on the kit is easy. We provide specially designed adaptors that bolt directly onto your Explorer ST. Everything in this kit is absolutely compatible with Ford’s OEM master cylinder, ABS and traction control systems - no modifications are required.  Forged High Performance Calipers One-piece Forged Aluminum Body made from Aerial 6082 Aluminum Alloy Caliper colors: Black Red Yellow Green Blue Silver Front piston diameters (front): 38.1mm 31.8mm 28.6mm Rear piston diameters (rear): 38.1mm 29.5mm Front caliper dimensions (LxWxH): 279mm x 165mm x 88mm Rear caliper dimensions (LxWxH): 274mm x 165mm x 75mm Front weight: 3.52kg per caliper Rear weight: 2.76kg per caliper Ceramic Graphite Brake Pads Heat Resistant from 0 - 500C Friction Coefficient of 0.49 2-piece Ventilated Discs Massive 405 X 34mm rotors (front) & 380 X 28mm rotors (rear) 2-piece ventilated rotors with curved ventilation vanes Full-floating rotors with anti-rattle system (removable and rebuildable) Rotor discs are constructed from FC30 cast high carbon iron with anti-corrosion coating  Rotor discs come in your choice of drilled, slotted, or drilled and slotted configurations Center Hub (the hat) is 6061-T6 aerospace grade aluminum alloy Plane Bounce: <0.03mm Mounting adapters for the Ford Explorer ST Adaptors are made from Aerial 6061 T6 Aluminum Alloy CNC construction Stainless Steel Brake lines  Teflon coated Braided stainless steel Protective weatherproof PVC shell  We highly recommend DOT 5.1 brake fluid (not supplied) Installation Installation Time: approximately 4 hours Difficulty Level: Mechanical expertise or professional installation required What's in the Box 2 SuperForged High-Performance Six-Piston Calipers 2 SuperForged High-Performance Four-Piston Calipers 2-piece SuperForged Front Rotors 2-piece SuperForged Rear Rotors 4 braided stainless steel brake lines Ceramic graphite brake pads (4 sets, one set per caliper) 2 EPB calipers 2 EPB wires 2 EPB pads 2 front & 2 rear mounting adapters (for 2020+ Explorer ST) Installation hardware