Is this really necissary? I can see how it would be on some trucks but the avalanche had such a huge area for air to rush in up front and especially the front wheel wells. I know Ehroof has a hole in his avalanche body and if he does it I'm thinkin everybody should do it. My truck started runnin a little hot last night and im guessing one of my needles is out of shape. But then again how does a needle tighten (lean) itself? This is why I was wondering if the Air hole was alot more important that i originaly thought.

Thanks, Defm~