Make your Buick's exhaust run quietly with this new aluminized steel muffler. This is not a turbo muffler. Overall Length (in): 26"Thickness (in): 4"Width (in): 10.5"Fits: Buick; Centurion 1972, Electra 1967-1972, Estate Wagon 1970-1971,GS 1970-1971, GS 400 1968-1969, GS 455 1970-1971, LeSabre 1968-1972, Riviera 1972, Skylark 1968-1972, Sportwagon 1968-1969, Wildcat 1968-1970