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      11-22-2008, 06:15 PM   #93
shragon
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Drives: 2006 325i SG Sedan
Join Date: Oct 2005
Location: Bay Area, CA

Posts: 27,450
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finally did this mod today. also went ahead and replaced the stock air filter with a k&n drop-in filter.

my butt dyno tells me that throttle response is improved. also feels smoother throughout the power band.

soundwise, it seems to be a little louder in the higher rpm range, but that's about it.

all in all, pretty good.
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