I've started my own thread to detail my deep dive into the clunk part of this issue. Go here to see what I'm doing and share information:
https://f80.bimmerpost.com/forums/sh....php?t=1637057
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2015 M3, 2005 330i ZHP, 2015 228i 6MT Track Handling Pack, 2007 M Coupe (Sold)