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      12-25-2008, 07:59 PM   #6
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Drives: AW M3 Coupe
Join Date: Nov 2008
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Originally Posted by aus View Post
Has anyone dyno's any signifcant gains with this?
Maybe 5 to 10 hp.... not because the afe filters are that good, but because the stock ones seem so restrictive with the inclusion of the charcoal element.

Here is more info...

Here is one with filter and exhaust:
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