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      10-22-2010, 08:09 AM   #21
j1gzca
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Drives: 21 G80 M3 / 17 F87 M2
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Quote:
Originally Posted by Greenkirby21 View Post
makes sense, now the question is, is it the same vacuum that closes/open the flapper?
Should be. The vacuum comes from the engine intake.
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