Does anyone know what this is

 

What, what is ?
It's so dark, I can't see much of anything.

I can see a pair of vice grips on the muffler pipe ?

 

Um.. a pair of vice grips holding the exhaust together where there might have been flanges a long time ago? Perhaps if you could put an arrow in the picture to point at exactly what you are referring to we could help better.

 

Muffler bearing.

 

You mean an exhaust hanger ?