Thread: DIY: Golf tee mod / exhaust flapper disable w/ pictures
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      12-09-2011, 01:27 PM   #211
DARK PHX
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Drives: 2009 e82 135i
Join Date: Nov 2011
Location: Arlington, VA

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Just did it with a zip tie and took a minute. I could definitely here the difference when idling. We'll see if it does truly affect MPGs.
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