Thread: Air Filter
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      04-27-2010, 03:14 PM   #29
BothMyE92M3sBroke
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Quote:
Originally Posted by pride355 View Post
At BMC website, I noticed different dimensions for the filters in US vs Euro M3s.
Any one knows the reason?

Here is the link: http://www.bmcairfilters.com/VisModel.asp
U.S. has a different airbox design than the Euro one. The Euro Airbox's spring-loaded nub that is inside the airbox is shorter, I believe, so in order to mount a U.S. air filter inside a Euro airbox, you need an adapter, like the one Macht Schnell provides. From what I understand, U.S. now uses the Euro Air Box in their most recent model year M3's.

You can get an adapter, or just get a filter that's sized appropriately. Less parts, less things to go wrong.