You can paint the smooth or textured flares. The smooth just take less prep work. I worked at a for dealer and across was a GMC dealer and they both had a rows of trucks with.6" lifts and pocket flares. I have to say I like the painted took the best but that is me. I would go see if a shop has the even if their not the ones for you model and hold them up to see if you like it. The black will look good with black wheels, handles, and mirrors I just think the painted style makes it look more like they were made to be one their from the start not as a add on.
2014 Black Express, 4.5" Maxtrac lift, Ballistic Razorback's 20x9, 35x12.5 Federal Cougaria MT's, DeeZee tailgate assist, K&N drop in filter, magnaflow 16" welded in, Diablo Trinity, 20% tint on the front and 5% on the rear glass, AVS Smoked Aeroskin, HID 3000k fogs, 6000k HID's in the projectors.