^^^ PA now has a visual inspection that basically states that your car has to be the way it came from factory with everything on it from factory. Can't remove stuff, leave all emissions shit alone, etc.etc.etc.
Like my Jeep would fail because it has a chevy engine in it instead of the AMC V6 258 that came from factory as well as a couple of things with my jeep.
But like i said there are very few places that i know of that are even enforcing the rule. Technically as my car is right now it would fail becasue of the CAI
but i have never had a problem with getting mine done.