Billet Head Kit / AXYS 800 HO ('15-17) Dome Selection:Low Altitude 0-6000ft Extensively tested on our superflow

Extensively tested on our superflow 902 dyno making this the best header on the market

Requires a DC 12 V battery absolutely

BMP Performance Tunes:

This is hands down the best and first thing you should do to any Diamond Drive machine

Billet Head Kit / AXYS 800 HO ('15-17) Dome Selection:Low Altitude 0-6000ft Extensively tested on our superflowEasy bolt on power for your 800 AXYS! This head has twice the cooling capacity to keep your motor running cooler to maintain horsepower by staying below the 120 degree timing curve. This head does not require a fuel controller when run by itself, or with our durability kit. If you run this head with our performance pipe, you will need a fuel controller. We offer two different dome configurations: 800 37. 5 is a 12. 5: 1 compression ratio that works