So after checking and ruling out other possible causes of the code it comes down to needing a new Pass side Cat. Im just wondering whats the best way to replace it because it will require cutting the factory exhaust and removing the Cat. I really have no exhaust experience but I refuse to pay the massive ripoff of a cost it will be to get it done by a shop. I was planing to just get a cheaper 49 state Cat for now just to pass emissions in June. Here's which Cat that needs replacement: Any advice or guidance from more experienced members.