And don't forget....diesel testing has begun. 98 and newer. No 6year new car exemption and no 4yr transfer exemption.
I just went through my " training " course. " add on cold air intakes, exhaust temp sensors are not subject to CARB stickers, but is a clue that the vehicle may be modified further and you should pay close attention for programmers and mods
that are illegal " Paraphrased a little, but you get the point.