Originally Posted by cleanmach1
No it's the cat because i took it to a shop and put it on the lift and there is nothing loose or anything and there aren't any leaks. So I'm assuming the noises I was hearing was the loose material in the cat itself that has been blown out the tail pipes by this point. My only question is Will it hurt my car to run it with a faulty cat untill I have time to replace it with an offroad h pipe
I'm a bit confused here. Your cats are forward of the x-pipe, right?
Like ZLwhat said, to paraphrase,
If either single cat was the cause of the smoke, the smoke would come out of both tail pipes. It would seem to me something is inside the right hand side exhaust, behind the x-pipe.
If you just had mufflers put on, maybe there was something inside the right hand side muffler and it finally decided to burn. This doesn't explain the noise you hear, but you may have two problems. The rattle, and the smoke.