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N63 550i owners come in
Ive been curious about the turbo sound and just now thought to make a post about it. From the interior, My E60 535i with DCI/jb+ produced the normal turbo spool sound. However on my F10 550i stock (except for JB stage 1) the turbos sound like a low pitch posi/eaton/roots blower when they spool up.
Does anyone elses turbos sound the same?? is this normal?
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