W-Body 12.7" Four Piston Brake Kit

The ZZP W-Body 12.7" Four Piston Brake Kit provides a substantial improvement in stopping performance for W-Body and H-Body vehicles. This kit is engineered to be easy to install and service, offering a significant upgrade over the factory single and 2-piston floating caliper brake systems. By incorporating larger 12.7" GXP rotors and 4-piston ZZP calipers with nearly four times the pad surface area of stock, drivers will experience reduced stopping distances, a firmer pedal feel, and increased resistance to brake fade. The calipers are constructed from aluminum, offering a weight advantage over the stock cast calipers. This kit includes (2x) 4-piston ZZP calipers, a ZZP caliper shim, ceramic brake pads, 12.7" rotors (available in drilled or drilled/slotted options), caliper pins and clips, and the option to include Goodridge stainless longer brake lines. The use of standard GXP rotor sizes ensures ease of replacement. Please note that installation may require the re-use of stock caliper bracket bolts and, depending on knuckle casting differences, the included caliper spacer/shim might not be necessary. As with any big brake kit, wheel fitment is critical and may require extended wheel studs and/or wheel spacers depending on the wheel's size, offset, style, and spoke design. This kit is designed to fit 18" wheels and up, with potential fitment on some 17" wheels.