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      05-16-2012, 01:16 PM   #9
Remonster
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Drives: E90 M3
Join Date: Dec 2007
Location: San Diego

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Quote:
Originally Posted by bobblehead View Post
valvetronic (variable valve lift control with double VANVOC) - code name for engine N63Tu - only for 650 ... NOT for 640
The 640i uses the N55, so it has had Valvetronic all along.
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