AllGOnoSHOW
Well-Known Member
All they really do is move the "power" that you already have to different ranges in the engines "power-band" You won't feel an increase of hp but you may see a very tiny bump of hp on a dynograph (not much if any). The only time you will see a substantial increase in power with i/h/e is on a built motor, not a little gas saving accord. Anyone who says different probably also thinks their accord is a race car.
But I dont believe my I,H,E does more than allow better airflow