Hi, I just got the dreaded P0420 code. it was after I had two engine misfires (replaced coils and sparkplugs so now that's all fine) but the process is probably what killed the cat. It's hard times for everyone with the coronavirus shutdown so I can't spring for new ones, but I don't want to scrap my beloved car which is otherwise running fine and it's due for smog in June. It's an automatic fail with an SES light on so I definitely have to get a new cat. Please let me know if you've got one available (passenger side). Thank you! I'm in the Los Angeles area and can meet you to pick it up!