- cell cat
- check engine light
So far so good.
The item seems to doing its job. Installation seemed relatively easy. We had to loosen up some braces to help with the installation, though. After installation the setting of it in the right angle or position in order to clear things with the O2 sensor was a minor concern. So far we have not had the code show up.
Good but beware
Installed with mid length headers, with 400 cell cat in the down pipe. I got a CEL, saying slow response for the first week, then it went away. Not sure whether the ECU adjusted for it or it said screw it, its fine, but just beware this is also made by a different company, ZZP just lists it, so don’t go to them if you have issues, I’m leaving it on for now if/until it becomes an issue. Gotta pass the emissions though.
No check engine light
Great addition to the ZZP downpipe and cat to ensure less chance of a check engine light. I enjoy installing these quality parts on my cobalt, I get great results and I dont go broke!
Fit perfectly with the downpipe
No Trouble Codes
Installled this along with the ZZP downpipe on my 2019 Sonic RS and havenâ€™t thrown any trouble codes. It was a tight fit during the install but can be done without unbolting the rear of the resonator pipe.