Catalytic Converter Recommendations for 2008 JKU - Code 420

AJ Thanks for the additional info. I'm going to check in with a local exhaust shop to see they have any insights to work around the CA car but in AZ, although I'm not optimistic about it at this point. I have a feeling I'm going to have to pony up for some new (or maybe locate used) CARB compliant cats.
 
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