Arctic Cat 858 High Elevation Head Mod 04-411 Category_Default Category/SLED/Racing/Polaris you must purchase a quantity

you must purchase a quantity of 2)

providing a nice increase in top speed (2-5 MPH)

With the ability to store and switch between two maps on-the-fly  (via the map switch accessory) and connect to various Power Commander accessories such as the Autotune

Key Features:

3 x SNYPR Adjustable Primary Clutch Weights

Arctic Cat 858 High Elevation Head Mod 04-411 Category_Default Category/SLED/Racing/Polaris you must purchase a quantityTHIS HEAD MOD REQUIRES YOU TO SEND IN YOUR STOCK HEAD FOR EXCHANGE Need more power out of your 858 at high elevation Our head mod packs some serious power, No tuning required Pump gas friendly Arm Pulling Torque