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      04-01-2011, 04:17 PM   #41
urnuts
First Lieutenant
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Drives: '06 330i (the now "slow" bmw)
Join Date: Sep 2006
Location: Southern NH

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Intake

I'll concede that most of you guys know more than I- but my AFE is fairly well sealed from the engine compartment.
The sides, and the top which has sort of a weather-striping that makes a pretty tight seal.
And then the "compartment" is fed cold air from the outside just as the oem airbox is. Am I crazy?
I understand that the air surrounding the filter is not "cold", but I would think that is is somewhat insulated from the engine compartment.
Jeez, I don't know.

http://s206.photobucket.com/albums/b...t=IMG_1883.jpg

You can see the filter, so I understand it's not "sealed" like the airbox would be, but it is sealed in the rear, sides, etc. But the area around the filter/intake should be constantly fed with cool air assuming the car is in motion, no?