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Old 02-25-2009, 05:04 PM   #47
Keep it clean
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Yup. I've said it once and I'll say it again. The portion of BMW's R&D department dedicated to developing the airbox has a larger budget than any aftermarket supplier out there. The answer is not always "cone filter + heat shield".

Originally Posted by FTWeisse View Post
OEM intake box > *
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