I'm getting reports of cars getting rejected because of a warning to all smog inspectors not to pass cars with any hoses attached in the intake or air cleaner inlet. So that means no alky installations allowed without out a referee inspecting & approving the device. Don't go in for a smog inspection with the hose connected to the inlet pipe or you will get rejected. My guess is that they are specifically targeting NOS systems. In actuality alcohol sprayed into the engine has a cooling effect & suppresses detonation & reduces NOX & H.C which is a good thing. So I don't know why they would have a problem approving that. But the easiest thing to do is just disconnect it.