p0420

Any fellow members in an emissions state? I’m here in Georgia. I have catted stainless power headers. CEL is on for P0420 and P0430 My emissions is due soon and I’m looking for recommendations on which o2 defoulers/spacers to go with though I know it’s not guaranteed I would still like to give...

Well, this wasn't the outcome I expected to getting my first mustang. About 3 weeks ago I saw a beautiful 2019 oxford white GT pp1 with only 15k miles on it which I couldn't pass on. My gf's father whose a car salesman at ford had helped me get approved and get the stang delivered to his...

I’m assuming this will just be something I will have to live with from now on since tuners will not mess with emissions equipment, which is completely understandable. But I’m wondering could this code possibly be a bad 02 sensor? I ran the headers NA with no issues and no codes. Now that the car...