E-Autogrilles Aluminum Polished 8mm Horizontal Overlay Billet Grille for 99-02 GMC Sierra 1500/00-06 GMC Yukon / 00-06 GMC Yukon XL (1PC)(33-1117) Grille insert only as picture shows. Not complete grille, so shell is not included. 6062 Aircraft-grade Aluminum. 8mm bar width. Each grille guarantees a polished chrome color front surface.Multiple-step polishing process offers a mirror-like finish. It prevents the off-road elements like road debris such as papers, plastic, broken glasses, stones, etc. from getting into the engine compartment. All necessary hardware included.Provide installation instructions.Overlay Installation.