I think a more pressing question is; what happens to this air as it is heated? What can you possibly do with this? Are trying to channel this air as a nozzle? Are you trying to increase the pressure inside the chassis? If the latter it makes a bit of sense, because the heated air will increase the pressure of whatever volume you flow through the chassis. This means that the interiors of the sidepod tunnels, and their exits can play a big role in defining the overall pressure differential on the chassis.
It's really an incredible challenge, to create the effect of a wing with the sidepod and air intake tunnels, and whatever other orifice is allowed to flow air through the vehicle.
The RB7 channeled the cooling air, and then expanded it upwards, it's effect being somewhat of a wing, I expect Ferrari are doing their best to run with that idea. Trying to push the envelope on packaging.