Thread: N63 550i owners come in
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      10-10-2017, 08:45 AM   #20
535_BiTurbo
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Drives: 2012 550I - BMS Stg 1 & CAI
Join Date: Sep 2013
Location: Texas

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I finally figured out how to upload the vid. Does anyone elses turbos make this sound?



Its a high pitched whine....
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