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      03-03-2010, 01:56 AM   #6
xxe92xx
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Drives: 08 M3
Join Date: Oct 2008
Location: Milwaukee, WI

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Quote:
Originally Posted by ChitownM3 View Post
This has been discussed many times in the past. Some people still say it is a vacuum at full throttle. IMO, the bmw engineers put it there for a reason.
i never even bothered looking at those threads in the past, but it seems interesting....id like to know what its purpose is
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