Mr DBK , I just read your Front page " Ford GT Sports Changes at NAIAS 2016 " There is another item which has been added to this car.
When I saw the Blue show car knowing a little about air flow, heat exchangers and pressure drop it was obvious the square amount of inlet air area for the side pods intercoolers appears to be larger than the direct path air outlet via the tail light area.
I do see there is additional outlet venting in the lower valance area but air downstream of the heat exchanger is at a lower pressure and air does like to change direction.
Forcing the air to a lower point in relationship to the inlet point is less efficient.. So with that said it appears they did add a NACA duct to the Fender pods on the inside of the tunnel . Forcing high pressure air to the cavity on back side / low pressure side of the heat exchanger will help push the air out and help the inlet side process the air more efficiently .. if you move enough air via the NACA duct you would create an aspiration effect on the intercooler air flow. For the record I did notice that on the Mule car and mentioned it ..:biggrin it must be an effective necessary solution.
PS: Sorry I thought it was only a front page post only to respond to via social media,, .. so I wrote something here.. you got to many sections going o now !!.. :willy