Attachment 78267
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They'ye on to assist moving air thru the engine area for cooling. . Years ago doing body work for a few car rental places. We'd keep the front spoiler / air dam off ones that were cracked / broken. Turns out those cars were over heating by the time we got them back in at the airport. After some research those "cosmetic" spoilers actually were useful. It's why you see them on a lot of high revving compact & sub compact vehicles.
Rock Island Armory XTM-22 .22WMR.
https://i.imgur.com/quuWZ2L.jpg