Quote:
Originally Posted by clg82
So both catalytic converters are required? I currently have a catback exhaust, and wasn't sure about going long tubes (if it's even worth it) and getting rid of the cats.
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Technically speaking they are required to pass state inspection, there are many of whom who run them without error with usually a tune turning off the error. That’s just for the primary cats, since the secondary aren’t monitored then there’s no way for the OBD-II port to report their status