Polished Aluminum Horizontal Billet Bumper Grille by T-Rex®. Installation type: overlay. Classic grille style based on aircraft-quality billet aluminum. TIG-welded and hand-assembled to ensure superior quality. Nothing says custom like a Billet Grille, and nobody does Billet like T-Rex. T-Rex sets the standard for Billet Grilles with their use of the finest aircraft grade aluminum, and manufacturing and quality standards that exceed OEM.