Rear kit for Toyota GT86 Subaru BRZ Scion FRSKit is fully adjustable. Kit has a much better geometry than the stock suspension and mounts for 2 brake calipers per wheel. There is a regulation in the knuckles that allows the rear torsion to be set. (during body tilting, RWS is created) You can also set the neutral works of the suspension and many other parameters to obtain perfect traction. 18 wheels required. Kit include: 8 arms, including 6 adjustable 2 knuckles