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      02-02-2020, 03:11 AM   #24
2sporty
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Germany
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Drives: bmw
Join Date: Jul 2014
Location: Munich

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Anyway, here is a post that shows the S55 on ACN91 is very close to Stage 1 non-ACN 91.

https://f80.bimmerpost.com/forums/sh....php?t=1665741
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