Thread: N63 550i owners come in
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      12-06-2016, 04:22 PM   #13
David3
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Drives: E21 (x2), E46, F15, G05 LCI
Join Date: Sep 2014
Location: Austin, TX

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My '12 550ix: I hear the turbo whine every now and then when conditions are just right. Nice sound if you know what it is.
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