We admit you are right. California emissions approved components are
typically more expensive, however you should not be required to buy any smog
part your Nissan was not originally equipped with. In order words... only
purchase parts for your Nissan built specifically for your Nissan, even if
you have to find them used. You can not purchase a used CAT and install it
for use in your Nissan in California, but the carburetor you can.
posted by SmogTips Support