Wow it looks just like a GT3 or GT4! The OEM venting arrangement for the center radiator is just some small holes in the bottom of the bumper cover. The new vent is much bigger but the direct line of flow through it is blocked by the bumper beam. High pressure air can still escape here but if we need more cooling we may have to modify the bumper beam to vent the center radiator straight out the vent. The small OEM bumper vent holes do not have direct flow either so we think that we still have better radiator exit air flow than stock.
Now our radiators are up to the task of keeping everything cool thanks to CSF and Rennline, we are next going to turn our attention to cooling the PDK, the engine oil and the power steering.
Sources
CSF Radiators
Rennline
