Bikeman Billet Aluminum Cylinder Head Kit for High Altitude (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.
- BPR9ES NGK spark plug is recommended by Bikeman Performance.