I was/still am looking for CT headers just for the CARB approval. ive been told DC headers have the same CARB tag meaning they are legal for California smog. To my knowledge there is a set of DC headers available in Vegas for $900. If youre interested in them i can send you a link to the seller's listing.
Speaking totally in hypotheticals, If one were to get a ticket for aftermarket/illegal emissions modifications, ive been told by a very nice court clerk that to pay off that ticket is only $464. Luckily i have a recipt to prove it too LOL.
Supposedly Shad at Driving Ambition is working on remanufacturing the CT headers with their CARB stamp "as late as next year". It may be worth the wait. Best of luck!