This is a NOS GM Performance Parts Chrome Air Cleaner Assembly Kit for a Carbureted Pontiac GTO, Lemans, Firebird, Trans AM, Cataline, etc. Basically, it fits any Pontiac with a Carburetor that has a 5 1/8 inch neck opening (Q-Jets, Edelbrocks, Demons, Holley, etc.) This is a brand new item in its original GM Box. Long discontinued and hard to find. Perfect NEW condition. Kit includes lid with PONTIAC embossed on the top, drop base for extra hood clearance, Arrowhead emblem wing nut, filter, rod, gaskets, etc. You can use a K&N replacement 14" filter element for better breathing abiliity if desired.