I have a love hate relationship with mine. I am happy with the power handling and every time I take it out I am impressed with it. I lifted mine and put 29's clutched it, It is what I want, I am not set up to race in the least I am set up super soft and no sway bar for articulation and ground clearance. Now I did have issues with loose bolts, an engine noise that is still there but CFM says won't do anything about unless something breaks. Had a belt smell one time, found nothing wrong. The exhaust keeps coming loose and I need to add tighter springs for that, the air cleaner stock is junk from what people say. has a fuel leak at the pump in the tank, it shifts to gears very sloppy and likes to stick in gear or park, it stalls once in a while for no reason.  But it always starts doesn't get stuck hasn't broken anything major. If the engine lets go at this point, I will rebuild it and keep going because its super capable and I have made it how I want it.

i can give you a little input on cfm i have a 2016 zforce 800 the only one in our group everbody else runs a rzr since i have been riding with the group i ride with i have only broke a master cylinder the other guys have broke something everytime we ride axles reverse chains belts seems like it is always something i can go everywere they go no i can't keep up with the 1000 rzr on the big end but riding tight trails going threw the deep mud and water hole my cfm is right there with them for the money i think they are the best bang for the buck.don't know if this helps or not just a little input on thd cfm