<div class='quotetop'>QUOTE(shwarmy &#064; Aug 24 2006, 12&#58;05 PM) [snapback]62224[/snapback]</div>
Well if you leave the holes open then you dont get the forced induction effect. By plugging the holes allows for pressure to build up in the box from the ram air instead of the extra air being blown out the holes.
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Gotchya. Did you notice a difference?