I bought these for my 14 denali last year. I would say if you want to upgrade your lighting, get led bulbs. If you want to upgrade housings, id take a second look at the ones by alpharex. These look great, but for 1300 dollars, i dont feel they are worth it. The projector beam is good, but has the typical aftermarket 'step' in it where the line isnt perfectly straight, and to me, that is annoying as hell. Id try to find factory denalis rather than buy these again, knowing how the beam pattern is. Install is plug and play and works with any factory setup.