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35i/is Exhaust Rattle (Vacuum/Flap) FIX
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10-29-2013, 01:18 AM
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shlai
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Drives: 2009 Z4 E89 3.5i DCT
Join Date: Oct 2013
Location: Hong Kong
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Some said that the exhaust flap is important for non-turbo car to maintain power at certain RPM. How about our 3.5i? The turbo probably doesn't run probably after 2500 rpm I heard. Will disabling the flap affect the performance below 2500 rpm.
Appreciate
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