E-Autogrilles 07-10 GMC Sierra 2500HD/3500HD Black Aluminum Replacement Billet Grille with ABS Shell (42-0821B) High quality customer designed OE style ABS shell produced using CAD designed and CNC machined mold 6061 Aircraft-grade Aluminum alloy. 8mm bar width. Horizontal bar style. Black powder coated. Persist in looking amazing for years. No Cutting! No Drilling! 100% Replecement of OE Grille. Elegant, Attractive, and Generous