Quote:
Originally Posted by s85e90
Exactly, this has been dismissed by all the masses here, but IMO detonation is real.
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It was also dismissed by the same Mahle-Clevite representatives once they saw the same and actual bearings in person.
I'm also not sure anybody can draw conclusions about factory tuning by analyzing data a logs of aftermarket tunes. Seems like an invalid comparison to me. But let's assume BMW really did screw up the tuning, why hasn't those same tuners fixed it by now or exposed the flaw in BMW's tuning?