Polaris RZR XP Sway Bar Links. We machine our parts from solid T6 Aircraft Aluminum. We use top quality 52100 hardened steel heim joints- FK quality. Our misalignment washers are machined from 1018 steel and then zinc plated black. Our Polaris RZR sway bar links are offered in polished or powder coated black. Easy to install and easy to adjust to set your sway bar softer or stiffer depending on terrain. You can use this kit on both the front and rear sway bars.