I'm guessing it's cracked? The exhaust manifold was cracked completely in half, which was bizarre to start with, but im assuming it had something to do with the floodings the hurricane brought. The carfax didn't show anything like that, but it may not have been claimed.

I'm not completely sure where it's cracked, but the guy I brought it to told me it's the cat and he drinks beer with the family so im going to trust him on it. If the bolts for the heat shields do go all the way through, I can get under it and take a better look. I know there's a rattling coming from the same region when im going down the road ( which was going to be my next check ). He replaced the gaskets so i dont think it's the joints.