Performance side-by-sides are like the sports cars of yesteryear in more ways than one. Not only are they a ton of fun, but right now, the industry is enjoying an old-school horsepower war. There’s a new top dog, too, as Polaris tossed a turbo on the RZR Pro R‘s 2.0-liter four-cylinder to achieve a walloping 275 hp. The new king-of-the-hill is called the RZR Pro R Boost, and it makes 50 hp more than the naturally aspirated variant. That model was the benchmark not long ago, but it was outgunned by the 240-hp Can-Am Maverick R. Kawasaki’s 250-hp Teryx H2 hit the scene just last year, and now, Polaris has…
275-HP Polaris RZR Pro R Boost Is the World’s Most Powerful Factory Side-by-Side
