Bikeman Performance Billet Head Kit – High Altitude – Matryx 9R – Polaris 04-318-H-900

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.. B