This is probly true, but there are those that have a hi h.p. engines that makes more heat than a stocker. Band aids may be necessary----- Over 700 horses is harder to cool than 3-400.
I had a 15" pusher in front to help at stop lights, and pulled it out in experimentation, haven`t noticed much diff. , except no extra cooling at the stop lights. Was comforting to hear it kick on when over 200---