An N.O.S. Pontiac muffler as pictured. Fits 1965 Pontiac full size 8 cylinder single exhaust except Catalina stand trans w/2 brrl carb. Also fits 1964 Oldsmobile F-85 4 brrl single front. Also 1965 Pontiac Tempest 8 cylinder ( Models w/resonators) duals L&R. Body is oxidized. Body is 21 1/4" long 26" O.A. Inlet is 2 1/4" I.D. offset. Outlet is 2 1/4" O.D. offset. Gm 9779461