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      03-06-2013, 10:42 PM   #8
mspired335i
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Drives: 2021 M5
Join Date: Feb 2013
Location: NY

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Quote:
Originally Posted by SharkBait View Post
Sounds too high pitched to be anything on the bottom end. Sounds more like an intake valve or a lifter. Did it start suddenly or build up gradually over time?
suddenly starting happening,atleast as loud as it is now. But I feel like it could have been there in the past but I haven't noticed it..
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