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      12-01-2012, 03:53 PM   #1
racerbruce
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Drives: 21 X3 & 13 335is E93
Join Date: Dec 2009
Location: Seattle

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The DO NOT REMOVE! paper filter in the top lid of the air box....

While installing my new BMC performance air filter, I noted there is paper filter integrated in the top lid of the air box....with a note on the side of the paper filter stating....DO NOT REMOVE!

It appears it is not removable. How is it replaced? Duration?


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