In this video MRP tests out some new upgrades on some new models starting with the brand new TGB 425cc ATV, Polaris RZR 800, and the Hammerhead 250 OFF-ROAD MRP UPGRADES CLUTCHES, VARIATORS, ROLLERS, SPRINGS, SLIDERS, EXHAUSTS ALL AVAILABLE FROM YOUR LOCAL DEALER AT http://www.mrp-speed.com TGB 425cc ATV, Polaris RZR 800, Hammerhead 250 OFF-ROAD MRP UPGRADES