



This was hanging out of my rear subframe.
For context this is a 2016 Mazda3 with the 2.0 4cyl and manual gearbox. I was hearing a clunk from the rear driver side suspension so I jacked up the car and found this hanging out of the hole circled. I removed it and the clunk went away but I’m worried about whatever this piece of metal is. No part number or branding. Car has been in an accident but it was a low speed fender bender on the front bumper. Any ideas?