First off, i'm gettin a new exhaust, so today i was ripping out the old exhaust and i was planning on reusing my old catalytic converter. after i cut it out, i could hear a bunch of metal rattling around inside the cat. the end close to the muffler was fine but the end that connects to the y-pipe was destroyed.
here's the pic, all this crap poured out when i took the y-pipe out.
could this be screwing up my MPG's? NC state inspection law says that i have to have one and they are EXPENSIVE
here's the pic, all this crap poured out when i took the y-pipe out.

could this be screwing up my MPG's? NC state inspection law says that i have to have one and they are EXPENSIVE
