This is an incredible kit for the 850 Patriot engine. At the heart of this kit resides the all new SLP Power Dome billet head set that boasts a phenomenal 6 horse peak gain with an additional 5 to 7 horsepower midrange. Combined with the SLP lightweight silencer for a total peak gain of 7.8 horsepower, this kit really packs a punch. Weight is also reduced by 7.7 pounds. An SLP Power Shift™ Clutch kit puts the extra horsepower efficiently to the ground. All of this on 91 octane fuel with stock fuel management, this kit delivers great performance in an easy to install, hassle free package.


SLP Polaris Axys 850 Stage 1.5 Kit

  • All domestic orders will be shipped UPS GROUND or USPS PRIORITY MAIL depending on the weight and dimensions of the package.  All international orders will be shipped UPS STANDARD or USPS PRIORITY MAIL INTERNATIONAL depending on the weight and dimensions of the package.  If you have a preference how your package is shipped you may submit a request by emailing us at or leaving a note at checkout. 


    Please allow approximately 15 days for international deliveries.