I'm guessing the cat on my '03 is just an empty can like on my '01 Do*ge. When I put the Banks on that, the cat was basically a straight-through pre-muffler. Is that what I've got on this '03 MA/ME emissioned Duramax? My '01 came from NY - no emissions, and I'm registered in RI - no emissions, but the truck has MA emissions . Just wondering if all '03's got the cat and the twisty spaghetti exhaust to go with it, and if JK's or Banks' exhaust eliminates the whole mess!

Thanks in advance,

Ty