I have a RZR 1000 XP and I have been following the ride mod where you put the 4 passenger helper spring on a 2 seater , then put the 2 seater stock helper on the rear. Rocky Mountain ATV sells the spring kit but unless Im looking at the Polaris site, they are quite high plus they list several different springs. Im a snow bird and have been following this for some time and plan on doing this in the next month or so. Seems to be harder than I was exspecting on finding and getting the right springs. Im sure someone on the forum has done this to improve the ride do to the weak from helper springs. Not much help if it is collapsed all the time. Who ever has done this, please let me know the polaris spring poundage and what they ordered ect.