I don't have a problem if they could target cars that are at higher risk for creating smog and not just a random check.
Also, it would be nice if they could do it somewhere where there's a parking lane instead of closing off 1 out or 2 lanes in the middle of morning rush hour.
Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."