EAG 11-14 GMC Sierra 2500HD/3500HD Billet Grille Overlay Aluminum Polished 8mm Vertical Fits for 11-14 GMC Sierra 2500HD/3500HD. (Not fit for Denali) 6061 Aircraft-grade aluminum alloy. 8mm bar width. Never rust! Black powder coated. Persist in looking amazing for years. Vertical bar style. Overlay installation. All necessary hardware and instruction are included. Enables easy and quick installation.