2 BBl Dual Exhaust

340mopar said
It may be smog exempt in your state but it is not smog exempt as far as federal law is concerned. Legally you are not supposed to modify/remove any emission items. With that being said plenty of people do remove emission items and if you do decide to pitch the cat and go to duals you may need to go a little richer in the jetting.

Chuck

If it is absolutely illegal to remove the cat, can I add another cat to make it a true dual unit, or should I just put the muffler of my choice on the existing setup with a higher flowing cat and have a single inlet/dual exit design to get the look? Would that be the best way to go, legally, and would it still help performance?