I have the bomex scoops mounted on both sides of the car...see picture...and WITHOUT A DOUBT...made the car run cooler...the way I could tell, was that before I put the scoops on...heat would radiate thru the seat and make my back sweat like a whore in church...after the install, no heat what-so-ever came thru from the engine bay...
And less heat around the motor or in the motor compartment will increase your compression ratio...basic thermal physics tell you that the cooler the motor the better it runs....to a degree...
BIG difference...
I also have a set of Toms...to each their own. I will post all of these for sale with-in a week in the for sale section...
Bomex:
