Quote:
Originally Posted by MaxRulz
From what I understand it can give a nicer and louder intake sound and allows air to flow much more freely into the intake. From what I have read these are US only and not included on euro models.
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Europe is known to be more stringenty when it comes to environmental requirements, so I doubt that they will be installed as an environment protection device in the US but not in Europe.
I advice that before they are removed, that a question be asked to BMW North America (not the dealer) of their function and the effect of removing them.