Original Pontiac 400 air cleaner for a Trans am equipped with a 400 engine. This base is for a w72 car and also I think correct for 73-76 trans am. This base had some rust issues and was blasted and expoxy added where the rust issues were.  Then primered and painted.  This base is not perfect as shown in the pics but once installed it does look very nice.  This is perfect for a daily driver as this set up is getting very hard to find.