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      06-08-2007, 02:49 AM   #1
IS2000
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Drives: 2007 335i/ 2003 EVO8
Join Date: May 2007
Location: Bangkok

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Question whining noise at high rpm?

I'm just wondering if it's normal for the N54 to be making high-pitch sound at 4K rpm and above? The sound is pretty noticeable inside the cabin.
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