E-Autogrilles Aluminum Chrome Polished 4mm Horizontal Overlay Fog Light Billet Grille for 03-07 Cadillac CTS (2PCS) (35-0104) Grille insert only as picture shows. Not complete grille, so shell is not included. 6062 Aircraft-grade Aluminum. 4mm 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.