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Old 12-12-2012, 09:28 AM   #6
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Originally Posted by IH84DZ View Post
Both cats will work. The "50" state cat is CARB certified and will have a little stamp on it that says so. Basically, the manufacturer paid a lot of money for the CARB to test and approve it's quality and HC/CO/NOx reduction capability.

The only reason the uncertified one would cause a problem is if a knucklehead at the IM240 testing station looks for a CARB stamp and decides to fail you as a result.

I refuse to live in an area that requires this nonsense so I am not keen on the level of enforcement/corruption.
this is what I suspected... I didn't want to say anything in case it was wrong and he bought a cat he couldn't use.
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