That is a good question I never considered, I have never lived in a state with smog checks. I was given a Florida title from the previous owner that had the car as a 2007 construction. My state went with that. I was just happy to register the car without trouble , regardless I am not looking to sell the car anytime soon. Waiting for the Subaru conversion to be finished now. I wonder if the Subaru engine Special edition is installing would pass a smog test? I know they don't use a catalytic converter so it probably wouldn't pass. Problem for another day.