[gaymondlee]

Hi,
Car was running great for the ~21 months I had bootmod3 and evolution racewerks catted downpipe. I had it uninstalled today locally by a shop (that installed and sold me the dp previously) and put back the catalytic converter. The car idled rough in the beginning and then would have a hiccup every once in a while. I flashed back to the stock tune and also transmission tune and it doesnt run any better? Does that mean the catalytic converter went bad sitting in my garage or perhaps maybe an 02 sensor? I just spent $300 and dont want to spend $300 to swap it back especially since i need to smog it for my CA registration. if anyone has any input id appreciate it. I guess i should have left it alone and used that $300 towards a friendly smog shop. TIA for any help/guidance