I have a new 16 SXF450, pretty much the same bike. Also setting it up as a snow bike only.
*I installed a Rekluse clutch.
*Hour meter if it does not have one for maintenance intervals. I am using Trail Techs Voyager for a few extra functions including GPS
*Thermobob - easy install, helps keep engine temp up. It has a port for a temp gauge (also recommended)
*Fastway Hand guards
Fastway footpegs - Although the stock ones are good
Handlebar risers depending on riding preference.
*AME Heated grips - Might need to upgrade stator if I use those a lot.
LED lights - Again might need to upgrade stator
*P3 carbon heat shield fits well and saves burning your high dollar gear.
*P3 carbon skid plate - more of a belly pan idea
Air pre filter if using the stock airbox setup
*Fork springs and revalve
Engine shielding - keep some heat in. Not sure if I like what is available right now.
The ones with stars* I have done. The others I might wait on. A lot of other things you can do, this is just my build as of now.
The thermobob and stiffer fork springs I would do first!
Share what you do and how it works.
The bike will work stock!
And wow is it fun in the dirt. Love that 450!