The radiator air exits through the stock openings to the front wheel wells, which have the OEM wheels. The advantage of this method over bonnet vents is that I am dumping my radiator exhaust into an area that is already turbulent, so it isn't adding to the total amount of turbulent air created by the vehicle. But the air exhausted from bonnet vents, depending on how it is handled, could add turbulence to the car's airflow as it merges with it.
There are deflectors in front of the rear wheels in between the two side skirts. I started out with a wheel spoiler in front of each wheel using the spoiler design found on many hondas and toyotas that deflects the air downward in front of the wheel. I later replaced the front wheel spoiler with the current air splitter and added the side skirts, but left the rear spoilers in place to deflect any air that got up inside the side skirts before it encounters the rear wheel.
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