Question about high flow cats

[framk25]

Does any one know if high flow cat pass Ca. smog check?
Note the truck does not have any cats, trying to get it registered.

 

[Chuck B]

as for tail pipe emissions should be no problem, however, if you are getting a visual inspection (normal in Calif) it will not pass unless there are 4 cats and if not OEM factory they will require documentation as to why the factory cats were replaced. Been there done that.... I know several who found shops who only cared about tailpipe emissions and passed them. Unfortunately, the shop I went to with my other vehicle documented i.e. red flagged me in the system. I ended up having to go to CARB directly before I was passed.

 

[trubuilt]

just get a set of factory mids and then swap it in and then out once passed, I am sure a member closer to you will have a set cheap