UCA's for WK2 options as of this date
2011-2015 JBA & RRO
2016-and up only RRO JBA has them on their list to do but way down the list according to them.
Jeep changed the entire front end geometry in 2016 along with relocating the front swaybar to mount on a clevis attached to the front shock . Aluminum lower arms front and rear also. Not sure if this design is better or worse or what the benefits are. I owned a 2013 WK2 & now a 2017 , and the handling on & offroad is night and day. The new transmission and re- calibrated traction & 4x4 system is clearly eveident .
I've reached to several manufacturers regarding UCA's and they all have little or no interest.