Last night the steel band for my cat back's muffler hanger broke on me. I have a temp fix in place with wire to piece it back together. Can anyone suggest where I can look to find a replacement for a it?

It might be possible to have it welded back together, but might cost more than replacing it.

 

Any exhaust shop should be able to weld it back on for you. And it shouldnt be much, like $20-40