I have a major problem with my 13 mustang GT. Whenever I go 80 mph + my hood shakes alot. I used to have a aftermarket front lip from ebay on my mustang and after doing a pull in some windy weather the lip fell off and an unidentified black object from my car. I have no clue what it was/is. Everything under the hood looks fine until I hit 80 MPH. Im going to Palmers track for the first time and being limited to 80 mph is very nerve racking. Since then I've been moving the 4 bumper stops under the hood to no avail. Ive taken it to ford and they believe the hood is shaking because of the bumper rubber piece under the hood. I looked through some old photos and it turns out I never had that piece to begin with. If you want to see the video of my lip and the other item falling out from under my hood please help Im lost at what it could be. Ill add a link to the video I made with my lip falling off.
https://www.youtube.com/shorts/MsPsAwBBU4k
Any suggestions for what this could be would be appreciated. Thanks guys.