Adding a Thunder Racing air foil to your throttle body is a simple, inexpensive way to increase the horsepower of your car. The stock throttle body has a dead air space in-between the throttle body blades. One of the reasons
this space is there is to provide airflow to the idle air control valve which modulates idle quality. However, only a small volume of air is needed for proper idle quality and most of the space is wasted. This "dead
air" space causes turbulence in the throttle body as the air rushing into this area must enter, turnaround, then turnaround again to get into your engine. By installing an air foil which is designed to block off this
"dead air" space but still allow airflow to the idle air control motor, you can improve the performance and smoothness of your engine. The air foil is particularly useful in supercharger, nitrous, and high hp
normally aspirated engines.
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