After installing my dual rate springs from RacerTech on my 2009 800s , i took then to my favorite place in the desert , The Rolls . Had to drive it on the pavement to get there and I was really happy the difference here , the sway was gone for the most part , but the real cool part was when I hit the sand. Was out for 3 hours and never once did it bottom out , all the jarring from rocks etc were gone, my back and neck loved it. And going into the deep curves was great , no bouncing and jarring , just going where I wanted it too. Over the real rocky area’s it held its line totally , important on steep rocky upgrades.
Am I impressed , you bet. This was with the stock Fox shocks and I have to say I do drive that RZR hard.
Oh , I do not have any relationship with RacerTech , matter of fact I am probably towards the top of there pain in the butt customer list.

Hal