DynoJet Power Vision CX for 2015-2019 Polaris RZR 900 / S / 4, PV3-19-03. Power Vision CX for Polaris Off-Road vehicles is a performance tuner and data monitor that offers the latest flash tuning technology, real-time data monitoring, and other industry exclusive features. DEVICE FEATURES: -- Flash performance tunes via OEM diagnostic connector, no need to remove and send out ECU -- Display vehicle data channels in real-time -- Weather resistant for use in all conditions -- High contrast display, viewable in direct sunlight -- PERFORMANCE TUNES: -- Fueling revised for maximum power and torque -- Rev limit raised -- Speed limit raised -- Spark timing optimized for 91-93 octane fuel on premium tunes -- Raised boost levels on premium tunes