I had this on general discussion with no response so I will try it here, who knows I might be the first to bring this up.
I am getting a new muffler and pipe put on but want to add a catalytic converter, it does not have one now. talked to the muffler shop and was told I might get a check engine light after adding one. Anyone else experience this or have a issue just by adding one? I would assume they came from the factory with one on it. I don’t like the burnt gas fumes that I get while it runs.