Hey guys in hearing a rattle when I stop and it's anoying the heck out of me. Right now I have a AMS HFC and their single exit exhaust. Can anyone help me???

 

I had a magnaflow and it rattled every time I stoped as well. It would rattle till the car reached about 900 rpms. But my car idled high so after a while it went away. I never actually looked under the car to see where it was rattling. But I suppose you could try to find the spot its rattling and just wrap the pipe in heat wrap. That's what I would do if I still had the problem.

 

So I just checked under my car and there's nothing hitting. I can't find anything that is loss or hitting the exhaust at all :/