in Ca, CHP is whole different story. watch out for chp in all white patrol crown vic's with only the star on the doors. these are C.A.R.B. officers. they're the ones who patrol around looking for imports that may have illegal aftermarket parts. if they catch you with an illegal motor they take a bunch of pictures of the engine bay and you're cited. then you're sposed to change out the motor and go pass a visual and smog insepection.
they know about all the different engine options in almost all imports, they know what they look like, how to identify everything, and they even read imports magz.
i got pulled over at the end of last year, exhaust was loud, by one of em and he said its gettin to be a big problem with engine swaps. he asked me to pop my hood but i'll i have under there is a tired old SOHC ka..
thats why if i get an sr20det in my 240 now, i'm gonna get another 240 and keep it legal so i'll have something as a daily driver.