2016 Polaris RZR XP Turbo ECU Comparison VRTuned.com May 8, 2017 Product Info, Tuning Tech Doing an ECU tune on the 2016 Polaris RZR XP Turbo is the single biggest improvement to the performance that can be done. As the first year of the XP Turbo, this vehicle came stock with 144 horsepower out of...