Just an update. For the Z6EX model, RZR 800S shocks fit and are the exact same length and no modification is necessary. Just installed on mine. For the EX it HAS to be the 800 S shocks though since the regular rzr 800 has shorter shocks. Also, I installed a proven companies new product offering, Garage Products A-arm bushings, and they are 1000% better than stock. They are a very snug fit where you have to put the bushings in with a rubber hammer and use a press or big c-clamp to install the sleeve and for comparison I pulled the old bushings out with pliers easily... No more loose A-arms!