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swartlkk -> RE: K&N or AEM??? (2/9/2006 4:06:15 PM)
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Well, I don't have anything against either of them and am sure that they both will serve you well. Here's my take on the whole thing. The aluminum, having a greater thermal conductivity between the two, will stay cooler to the touch. The problem with that is that it will transmit more heat to the air and the air is effectively cooling it off. Now, does the aluminum intake heat up the air more than a plastic one? Who knows. When you get right down to it, it has to deal with the internal surface area and surface finish to determine how much heat can be transmitted into the air. Just the fact that you are getting away from the accordian tubes and into a smooth walled pipe is a benefit. By switching to silicone couplers and steel/aluminum pipe where the rubber accordian tubes are on the current intake would net gains even with the stock box.
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