CAMARO6 - View Single Post - Stainless Works Cat-back exhaust and error code P0420 '16 2SS M6 non-NPP. any ideas?

Tread · 09-17-2016, 02:00 PM

Yep I've still got the stock system. I was thinking it would probably have to come to that. I just wanted to make sure there wasn't anything obvious we were missing.

09-17-2016, 02:00 PM	#5
Tread Drives: 2016 Black 2SS Join Date: Jul 2013 Location: St. Louis, MO Posts: 6	Yep I've still got the stock system. I was thinking it would probably have to come to that. I just wanted to make sure there wasn't anything obvious we were missing.