http://www.injen.com/docs/injen/cont...ct=faq_landing
6. Injen Technology submits all of our air intake systems for CARB exemption approval (California Air Resource Board). All of our air intake systems are either certified by CARB or have been submitted for CARB exemption. Considering California has some of the toughest emission laws in the country, CARB approval has been accepted as legal by other states.
Each of these kits includes a high temperature decal with the CARB exempt OEO number. This decal identifies approved aftermarket add on products from non-approved products. As long as you have the approved decal you shouldn't have any problems with vehicle inspections. You can visit our Website
www.injen.com and click on CARB EO listings to determine the CARB status.
There are 2 types of Injen intakes for the TSX. From what I have read, one is CRAB exempt and the other might not be. Call the person/company your buying from to confirm.
Price? Not sure...try PMing or emailing a couple of our forums sponsors.