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Polaris Unveils The 400-Horsepower RZR Pro R Factory Boost, A $200,000 Desert Race Machine
Polaris Factory Racing team member Brock Heger with the new Polaris RZR Pro R Factory Boost When somebody on stage said the number 400, the whole crowd gasped. It was a real, audible gasp. It came from people who tow their own horsepower out to the desert on …