This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Roadmaster: 1991, 1992, 1993] - [Cadillac Brougham: 1990, 1991, 1992] - [Cadillac Fleetwood: 1993] - [Chevrolet Camaro: 1990, 1991, 1992] - [Chevrolet Caprice: 1989, 1990, 1991, 1992, 1993] - [Pontiac Firebird: 1990, 1991, 1992]