2017 GMC Sierra Denali 2500 Heavy Duty Hides Something Under Its Hood Scoop

GMC released the first photographs of the 2017 model year Sierra Denali 2500 HD. It looks great, doesn’t it? However, GMC forgot to provide what’s hiding underneath the hood scoop. Fret not, though. Other than the pics and the hood scoop, all we know from GMC is the following PR talk: “Additional details and information on the new…