Arlen Ness Rear 6 Piston Caliper & Bracket Kit Upgrade your rear caliper with this simple to install, complete kit from Arlen Ness. These 6-piston billet calipers come with a bracket, brake line extension and all of the necessary hardware, the only thing you need is brake fluid! Features 6-piston rear brake caliper kits CNC machined from billet aluminum Features caliper bodies that are engineered for form and function, 3D sculptured design helps facilitate cooling incurred while braking Extremely stiff under stress ensuring precise and consistent braking performance