manifold back exhaust

[AaronLG]

anybody have anything? can't seem to find anything. I think one of my cats is breaking up cause there is a rattle at different rpm's and it sounds like it is coming from there.

 

[86caprirs]

I would like to know if any companies make a new high flow cat y pipe too.

 

[ssbroly]

Probably the heat shield. Just get under there with any kind of pry bar, tin snip, tire iron, etc, and rip it off. I had to remove one of mine that was banging around under there. Did the same thing to my Explorer. Wait till it cools off, climb under and do investigate.