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      07-28-2017, 10:36 PM   #202
LittleBlackHawk
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Drives: F30
Join Date: Jun 2015
Location: Asia

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hi all, I recently get the 335i muffler on my 328, but after the mid, the exhaust flap do not close anymore. I tried three flap controllers (the one came with 335 muffler, and mine original one and one that the muffler ship has), and the flap just don't close at all. Does any one have this experience and know how it make the flap function normally? Thank you!