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 ShiftTM 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.


Starting Line Products 2019-20 Axys 850 Stage 1.5 Kit

  • All items are shipped via USPS. Expedited shipping may be available upon request - please email us at

    Please allow approximately 15 days for international deliveries.

PO BOX 625 | Buena Vista, CO | 81211

719.395.6727  |

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Created by :  Ryan McConnell