I purchased a 2017 Z-Force 800 brand new in 2018 only had the machine for about 5 months now and just started doing some upgrades to it this is what I've done so far, custom intake with a secondary filter, CVT belt intake so that it's higher up and doesn't suck water in, crankcase reroute with it's own filter, 2" 5 point harnesses, rear led spot light, 2 4" front led spot lights,  blue led under and cab lights, 2" lift, 29" big horns, reclocked clutch to C1, sealed air box better, shortened shifter, custom metal doors, drilled out drain holes. Next up are cage chop and added bars, windshields, rock sliders and front and rear bumbers!!!

Only I have do I need to reclock clutch to b2 from c1 with the 29 big horns??

http://imgur.com/a/j1XZwTy

https://imgur.com/gallery/nVH0wyu

[2015 Z Force 800 53/Trail EPS]

Mmm...probably   Try it first and see.