Generally, parts which alter or modify the original design or performance of a motor vehicle pollution control device or system are NOT LEGAL FOR SALE OR USE IN CALIFORNIA or other states with similar regulations. Such aftermarket parts are subject to governmental emissions standards regulated by the California Air Resources Board (CARB). In order for such parts to be legal for sale or use in the State of California, or other states with similar regulations, the part must acquire a CARB EO number so as to make it legal for use on a specific year/make/model of vehicle. CARB approved parts will include a sticker containing the CARB EO number. This sticker must be displayed in a visible location in the vehicle's engine bay for smog inspections. Any order placed for a non-CARB compliant part to the State of California, or other states with similar regulations will be automatically canceled and refunded. You may contact us with any questions regarding CARB or to verify whether or not a part has a CARB EO number.