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Old 01-23-2013, 02:43 PM   #6
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Join Date: Jan 2013
Location: Cincinnati
Posts: 2
My Ride: BMWs & MINIs
Originally Posted by cadao View Post
What kind of air filter should be used for that intake ?
You'd be looking for BMW's part number: 13720431649. I'm unsure if there is an aftermarket filter available for this application.
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