What's a modification that I am missing?

[shktrk]

I've done tint, bedrug, tonneau, leveling kit, wheels, tires, and exhaust. What additional modifications have you done?

 

[PorBoy]

Wow my list is long but off hand I say bedstep, Hellwig sway bar, cold air intake, throttle controller, front / rear cameras, side steps, dash speakers, under seat storage just to list a few.

 

[Dynamite]

The tow hooks give a better look to the truck, you could add them... Or maybe a cold air intake.