Here are some pics of my new 2014 Sierra, its an SLT w/ preferred package, navi/bose, I added 6" chrome side steps, GMC tri-fold tonneau, GMC mudguards, spray in liner, and got the weathertech door visors and digital fit floormats. I also have 20% tint up front.
I have a flowmaster catback on the way, and I also plan on adding a CAI when they start hitting the market along w/a a tune.
Other mods I plan on for the future: throwing away the crappy goodyear fuel max tires it came w/ and running snows on the stock 18"s, then getting some 20"s and bilstein leveling shocks/struts. Probably a year and half out on that I guess.