Cobber

My understanding of the MGF aerodynamics is that the air comes in the lower air intake and through the radiator, but some actually pushes back out the upper grill, the idea behind this air duct kit is to prevent this by dividing the area behind the bumper into two sections.
Thereby pushing all the air through the radiator.
Unless there has been a new version of this kit, is that it only suits non-air conditioned cars.