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increase horsepower

  1. 2015 Model Polaris Rangers/RZRs
    For whatever reason, the 2015 Ranger Crew 900 has 15 less HPs than the 2015 RZR 900 with the SAME Prostar engine?? I've done quite a bit of reading and it "looks like" -ALL- of the critical part numbers between the two are IDENTICAL (Engine Number, Throttle Body & ECU). Is it possible that...