I want to put Injen Intake in my Scion TC 2007?

As Ryan said, you need CARB if your in CA, which the Injen CAI is Carb certified and sounds the best of all the intakes =) lol. Fujita and Aem are not CARB if I recall correctly. But hey, if your that worried, take it to some Juan's Smog place and pay a few extra bucks and I bet it'll p =) lol. (that's what I did for my old Honda)