(UPDATES BASED ON INPUT BELOW)
I'm fairly new here, and did some searching but didn't see a sticky thread listing all of the recommended mods and accessories members of the forum are using and recommend for the YXZ SS (and SE). After a quick run through the search function, I still...
I'm going to start adding on mine today. Rode with it stock and performed very well so probably no performance mods for a while but lots of protection coming.
30" Roctane XD
Wet Sounds Ultra 10 Stealth Sound Bar
FactoryUTV A-Arm Guards Front (Rear will require modification)