Yesterday I went and got my exhaust fixed due to a bad leak, as I crossed town and got caught in a traffic jam every was fine, and as I got off the interstate at a low rpm and slow acceleration it sounds like a theres a pipe dragging under the rear end of the car. But as I parked the car and inspected everything, there was nothing dragging and the exhaust is solid. Next thing I'm going to inspect any and all heat shields and then move onto suspension components. Has anyone else have this issue?

Also if I can't track this down, I'm pulling the rear subframe to replace the mounts which honestly needs to be done irregardless.

 

I was thinking heat shield. Rattling has happened to my Honda cars and its always a heat shield that is rusting off. My current 7 rattles from a heat shield as well. Have to sort it out this week.

 

id say heat shield, the heat shield on my cat rubs the tranny on my car and makes weird noises

 

Check to make sure there is nothing making contact with the driveshaft. A heat shield would be a likely suspect as others have stated.