Close to half a dozen different companies offer TA/AAR hoods and scoops, as well as modified TA/AAR hoods/scoops for induction clearance/custom applications, of course some vary from really close repros to junk, the Ebay offered molds are to repro the originals with all their various unique little details often missing or molded over or removed/improved upon in various other mfg's TA/AAR offerings.... so these molds would yield hoods intended for the OEM crowd that want the missing "details" even if they appear sloppy/defective which the factory hoods were....