The air is cooler & denser in the bumper compared to the air that is heated by the engine around the engine bay. The cooler the intake charge the more power you will make.
The air is cooler & denser in the bumper compared to the air that is heated by the engine around the engine bay. The cooler the intake charge the more power you will make.
like .5kw
I have yet to go in a car where i noticed the diffrence
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