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      04-04-2010, 11:05 PM   #13
forza1976
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Drives: 2018 M550 & M240
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Quote:
Originally Posted by maxnix View Post
Worst thing one can do is put a cone filter under the hood to draw in preheated air, especially in the summer.
This has been disproven on the 335. Many threads on it. Just an FYI.