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      09-22-2008, 07:32 PM   #4
M2audioman
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Drives: 2018 M2
Join Date: Apr 2007
Location: Bay Area, CA

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Quote:
Originally Posted by MMMazing07 View Post
i felt a pretty big difference with the BMC filter like sport mode was permanently on. it makes the intake box a tiny bit louder too. i kept my charcoal filter in though. i took it out and drove around the block back to back. didnt notice anything
Considering another member dynoed the filter and gained 1hp, i doubt you felt that big of a difference...Then again, the butt dyno can mislead.
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