Exhaust expansion and contraction noises

[Johnnybxxb]

It seems that this exhaust is pinging and popping allot more all of a sudden. And rattling too, nothing is loose. Anybody getting that too?

 

[mo8414]

Its always pinged as it cooled for me. Take the cover off and make sure where its attached to the header is still tight. Check all the mounting bolts. Thats really all that could come loose.