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Yeah, just make sure it has the a carb #. (California Air Research Board). For a listing of stuff that is smog legal in CA, just go to this website. I recommend searching by device and just select Supercharger System/Mod . Once you find the order, you can download a PDF showing all the specs that system is required to meet to fall under the order.
I would still go to the website and print out the PDF showing that it is indeed smog legal for your make/model/year. Just because it has a carb # doesn't mean that its legal for any car you bolt it up to. For instance, Kenne bell's 2.1l kit is only smog legal from 99-03 according to CARB, but on their site they claim 99-04. The paperwork also goes into detail as to how the system has to be set up....like pulley size, air filter setup, injectors, stuff like that. Also keep in mind that the tune you have on the car will have a lot to do with whether you pass emissions or not.