I posted this in the other section as well,
Now you've assumed that the intercooler is small, but in reality the intercooler flows nearly 1300 CFM, with less than 1.5# of pressure drop. The thermal efficiency is also very high with frontal surface area is 136 sq in which is completely exposed to fresh air. The low profile tanks minimally impacts the air flow to the radiator.
Maybe you didnt notice that the intercooler is 17inches tall and runs from just under the hood latch all the way down to the bottom edge of the front bumper cover.