I’m looking at putting a new Exhaust on my '81 FJ, over Thanksgiving (it currently resides in Michigan). I live in Arizona (SMOG testing sucks), can I realistically run an exhaust system without a cat and still pass emissions, or should I plan on running a cat? Also does any one make a kit with headers and a cat? This may have been discussed already, if it has please point me in the right direction. Thanks In Advance!