Body Part Question

Recently had a small front crunch and replaced the front header panel and front bumper cover. I need one more part but don't know what its called. It's attached to the bottom of the bumper cover and hangs down an inch or two...its what you hit when you get too close to a parking block. It could be an air deflector...I dunno? Hoping someone can help so I can ask/look for the right part...Thx.

it's an front air deflector .. according to the GM service "bible" manual