BIKEMAN PERFORMANCE Billet Head Kit - High Altitude - Matryx 9R - Polaris 04-318-H-900

Billet Head Kit - High Altitude - Matryx 9R - Polaris
Increase cooling capacity for lower running temps which helps maintain peak power, High altitude kit gains 8-9 horsepower in the mid-range and 7-8 peak, Works in the 6000 - 9000 foot altitude range, Tune is required for the R9., 91 pump gas is required., BPR9ES NGK spark plug is recommended by Bikeman Performance.