Billet Head Kit / AXYS 800 (18+) Select Elevation:Low Altitude (0-6000 ft) RZR Turbo S 2018-2021

RZR Turbo S 2018-2021

stronger mid-range and longer top-end

This kit drastically changes how your Ranger shifts out

and two base gaskets

The Fat Azz pipe alone does not require fueling modification but will gain even more when combined with a Bikeman re-flash

Billet Head Kit / AXYS 800 (18+) Select Elevation:Low Altitude (0-6000 ft) RZR Turbo S 2018-2021Easy bolt on power for your 2018 AXYS 800! This head has twice the cooling capacity to keep your motor running cooler to maintain horsepower by staying below the 120 degree timing curve. We offer two different dome configurations: 800 37. 5 is a 12. 5: 1 compression ratio that works great in the 6000 9000 ft range and bolts on 7 8 HP in the mid range and 5 6 HP peak. 800 41 is our lower 11. 8: 1 compression version for sea level to 6000 ft and gains 4