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      02-06-2012, 04:54 PM   #9
XBMW6
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Drives: 2019 740Li 2021 M850i
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Quote:
Originally Posted by roadsta View Post
I suspect this is probably 100% electronics, and no real update to the engine. The engine as tuned in the current 650i is good for a lot more, without mechanical change.
"This new version of the engine adds BMW’s VALVETRONIC variable valve timing to the list of specifications."

This sounds like a mechanical upgrade from the current engine.
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