BMW used DMF's for years, including on some E30s - so I'm not sure that statement has any validity.
If going with a LTW flywheel on an S54, I'd consider upgrading the harmonic damper. Mainly because the DMF is so much heavier, that alone absorbs some of the harmonics.
as far as it causing transmission damage - I'm sure it reduces some shock on the drivetrain. But the flywheels themselves wear out faster and need replaced, and also cost far more. Solid flywheels are typically used with sprung hub clutch disks, so it's not like there's no damping capability.
If going with a LTW flywheel on an S54, I'd consider upgrading the harmonic damper. Mainly because the DMF is so much heavier, that alone absorbs some of the harmonics.
as far as it causing transmission damage - I'm sure it reduces some shock on the drivetrain. But the flywheels themselves wear out faster and need replaced, and also cost far more. Solid flywheels are typically used with sprung hub clutch disks, so it's not like there's no damping capability.
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