The only thing different about some Saabs sold in California is the EGR valve on some specific models. EGR means "Exhaust Gas Recirculation." I've personally never seen it, because it was kinda rare. It's fitted under the throttle body IIRC. Otherwise, nothing special about Saabs in CA. My 8v is originally from the Midwest and my SPG is originally from New York. both are stock and have passed SMOG in CA.