I ran them on my 2015 but I wasn’t impressed; they were too stiff for my liking and required too much extra effort. I also had the shocks revalved for them so it could have been that.
Take all of this with a grain of salt; I was still pretty novice when I put them on but it made the sled harder and less fun to ride.
Application: Ski Doo G4 850 (2017-2020) (Fits KYB X Package Black Shocks Only) *Will not fit on SP Models* *Will not fit 2021 KYB Kashima coated version shock* Improve Comfort, Control and Bottoming Resistance. The stock KYB X Package springs will be too soft for most riders and way too soft...