The SXS Pro is a direct bolt-in (no extra brackets required) to the Polaris RZR (all except Pro XP) and will fit in a variety of other side by sides with our vehicle specific brackets. The lateral bolster support on the SXS Pro is second to none and was specifically designed to eliminate body shifting while driving. The strategically placed bolsters, coupled with the carbon fiber vinyl, which is known to provide more grip, will virtually eliminate any body shifting while driving.