metallic noise under car and whirring noise as i drive

[LifelessDro]

I FOUND MY METALLIC RATTLE.

I put the car up on ramps and tapped the heat shields with a mallet, found a place towards the rear that was just barely bent and touching the frame - at certain RPM's or when the chassis twisted it was just enough to make noise - I bent it back out and so many weird little sounds are gone.

I swear I've been saying bent heat shield for quite some time, just been lazy about it. Im gonna check immediately, because it literally sounds like sheet metal scraping and that's the only thing that comes to mind