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      07-04-2010, 03:12 PM   #8
aus
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Drives: Odysse
Join Date: Jul 2005
Location: Seal Beach, CA

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I believe BMW didn't do Valvtronic because of how high this motor revs.
It's used in most of the non-M engines... oh wait, all the other engines are now non-M engines since they're based on the N line with the boost turned up.
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Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."