AP racing 4-Piston Two-Piece Big Brake upgrade has been developed to be the ultimate performance brake upgrade. All kits are designed to perform with the factory OE master cylinder and are ABS compatible. Each kit includes world famous AP Racing 4-Piston Aluminum Alloy Calipers with AP Racing performance 13? Cross-Drilled and Slotted Rotors. The rotors are two piece curved vane for maximum cooling and mounted on 6061 T6 aluminum hats. Also included is 6061 T6 Aluminum mounting brackets with steel inserts for added strength, DOT Tested Stainless Steel Brake Lines, and all the necessary Aerospace Grade hardware to install the kit. Requires 17" Wheels.