Add Tunes with Rev1 Unlock your Ranger XP 900's full potential by adding our Rev1 Dynojet Power Vision 3 ECU Tuner. This handheld ECU Tuner is super easy to use and gives you the performance to take your utility machine to the next level. Plus, it functions as a diagnostic tool and allows you to tweak your own tunes. There Are No Limits When it comes to a Dynojet tuner, there are no limits. It increases your speed and rev limiters, and it adjusts your engine timings to boost horsepower. It lets you use the brake and gas at the same time, gives you a faster limp mode, and lowers fan temps. With a Dynojet tuner, your already badass Ranger becomes a complete utility monster with more torque and power. Installs in Minutes You'll be wheelin' and dealin' with more power in no time. This ECU Tuner plugs into your standard diagnostic port and takes just a few minutes to install. The bright, full-color screen is easy to read and use too. Doubles as a Diagnostic Tool This is your chance to tap into your machine™s capabilities. You can leave our tuner plugged in while you ride for live diagnostics. It shows RPM, coolant temp, wheel speed, and more. Plus, it logs all that data for you to upload to your computer, so you can tweak your tunes with the free Power Core software.