Quote Originally Posted by Ldub
I was thinking a chunk of sponge or high density foam cut to fit (HAS to be black, of course), would slow it down to a drip on those rainy days & keep out most of the cold air during the frigid winters we experience way up nort.

Cold air= power. Cold fresh air is good, but obviously too much water is bad. My truck makes noticably more power on really cold days.

I really don't think you can get up enough air pressure for any signifigant ram air effect, but the cold air will help.

John C.