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Old 07-12-2012, 02:29 AM   #85
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Join Date: Dec 2011
Location: Boise,ID
Posts: 56
My Ride: 02 325i
Originally Posted by tbear325 View Post
I have a whistle at the beginning of acceleration but it disappears when you give it more gas. Lower boot is new and no codes. Any ideas?

Mine is the same. I tested it, at its at all RPM's. When I give about 10-20% throttle it will whistle. But not if I do more or less than that. It can be annoying though as the 20% throttle is my most common spot. Is this the intake boot or maybe something else?
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