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Shorties - OK
Long Tubes - NOT OK, you will not pass because you have to remove the stock cats and that is a no-no in CA. You will fail the visual inspection.
If you add shorties, you don't have to touch the cats, and most shorties are CARB legal, you'll be fine.
As for the catback, you can do whatever you want after the cats - even go straight pipe. Should pass smog as long as you're not popping codes.
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