Which is why you have no clue what you are talking about. I worked in dealerships for YEARS. You CAN legally sell AND install a cat convertor that is 49 state. But, you have to be able to prove that the vehicle is a 49 state vehicle. There is guidence out there for it, even for getting a convertor in the aftermarket. The link you provided (read your link next time) provides guidence for people looking to #1, purchase an aftermarket cat convertor, and #2, submit for approval to sell an aftermarket cat convertor and the testing requirements it must go through before it's approved.
In the Header of the article posted from
your link:
Now, if you go to the proper page, it talks about installing the proper parts on the vehicle by looking at the "Vehicle Emission Control Information" sticker that is usually under the hood, which will guide you to the proper parts for your vehicle. There will be a difference in the sticker between the two 49 and 50 state cars.
And then there is
this, a "Q and A" link provided for guidence on how this all works, in simple terms.
So, care to retract your statement about having to install a 50 state cat on a 49 state vehicle? And also about not being able to sell a 49 state cat in CA? The guidence clearly states that that is exactly what you should do. When a web site says "Not for sale in California," That is usually a blanket statement to CYA, so they don't end up getting fined. If you produce the proper documentation that your vehicle is a 49 state car, they will sell it to you if they are worth a shit. And most parts stores are to afraid to have CARB come knocking on their door.
But yes, it is legal, provided the right circumstances.