I've gotten too many answers for this I don't know who to believe.
I think I have a nevada spec samurai but I'm not sure. Does a ca, carb samurai have a different egr valve or egr valve with a sub valve? I've searched here and online so I think this is a legitimate question

and while I'm at it, am I right in thinking I need to upgrade my cat?

I'm positive all EGR's are the same and Ca. now requires a OBDII cat. when replacing one.

Egr's are all the same as said.

Stock cat is the same to.

However, if you replace the cat in Ca it must be a CARBII type for Ca. But if it was replaced before the requirement or they don't look, who cares!! The new ones have a SN for theft reasons and are supposed to work better.

when was the requirement set? and are they stronger than the old ones? my bet is my cat hasn't been replaced for about ten years but I tapped it with a hammer and it sounded okay but.. it's entirely possible that it isn't

the egr and cat system should be the same.
replacement cat.converters that have been certified by california have that CARB designation, a licensed installer wouldn't put in anything else(in ca).
get it good and hot before smog tests.
my cat is not stock(2 1/2"in/out). i have passed smog with it.

heh, I'm not worried bout lack of stock just wether or not it works Cringed and had the shop to a diagnosis for 90 bucks, cat and carb were to blame