If high-performance off-roading is your pastime, you’re likely already familiar with the Polaris RZR lineup. The RZR is one of the best-selling side-by-side offerings, covering everything from an entry-level rig up to a full factory-backed racer. Polaris is taking things a step further for the 2027 model year with the introduction of the RZR Pro R Boost, which arrives with the model’s first turbocharged powertrain.
The RZR Pro R Boost aims to set the new benchmark for SxS performance, arriving as the most powerful entry in the entire segment. The package is centered around a turbocharged version of the brand’s home-built 2.0-liter ProStar Fury engine, producing 275 horsepower. For reference, the standard Pro R makes 225 hp from its naturally aspirated four-cylinder, while the Kawasaki Teryx H2’s engine is good for 250 hp. The new engine is designed to provide peak power all the way up to 10,000 feet of elevation, ensuring you can tackle mountainous trail rides without hesitation. The turbo also brings the added benefit of quieting the RZR down a bit, which is a welcome change for anyone who has done a long ride in one of these things.
The Pro R’s CVT gearbox has also been updated to handle the extra output, with additional tweaks to improve quality of life on the trail. A new clutching system with improved airflow should help prevent the CVT from experiencing any unwanted drops in performance due to heat buildup. The engine itself also receives a revised cooling system, with dedicated coolers for both the turbo and gearbox.
Polaris has also ensured that the rest of the Pro R’s driveline is beefed up, with items like larger half shafts to handle the extra torque. Every Pro R Boost will come in either Ultimate or Ultra spec — the former features a Dynamix suspension setup, while the Ultra models adopt the race-proven Dynamix DVS system, which brings the SxS industry’s first active sway bar links. Both trims also highlight a carbon hood, a genuine racing wheel, upgraded BFGoodrich 32-inch tires, and a bespoke color and graphics order sheet.
Polaris says deliveries will begin in November 2025, and given how capable the standard Pro R already is, the turbocharged Boost variant promises to be a serious performer when it hits the trails.
