Tell me if this sounds familiar to any of you. Something in my exhaust system is loose. I can hear it especially well when I start the car. It sounds like when you pull the tab off an empty soda can, drop it inside and shake it around. I swear it's coming from the catalytic converter, I could be wrong. I've checked all the places where the exhaust system mounts to the car and the system itself isn't loose. I don't seem to be losing performance at all because of this, but damn it's annoying. Thoughts? :thinking: