I read the same things OP about heat soak. Just4kickz is right, as long you drive forward you're not really sucking any hot air and we both have scoops. FYI only ONE weird time at 75mph highway my gruppe-m and scoops made me throw a code "running to rich" brought it to the dealer and they cleared it.
I guess you haven't heard any of my exhaust videos. I guess I'll make some later today to clarify exhaust sound that'll be coming out.