alright, this may sound like a really REALLY random question, but here it is any way. For older cars, mid 80's and even into the early 90's, are there CARB approved parts? I'd assume its a no, since the CARB program started after that time (I assume). So what happens if you were to buy a mildly modded car and try and take it to get smogged? Could you simply say these parts are to old? or would you have to source stock parts to pass a visual?
I'm not even going to bother with emissions, since that is passed by having a working cat.
Sorry for the random question, but I've not really seen an answer.