Shock Mount (Upper, Lower) 8W0412377B vs 8W0412377

[Pandemic]

Does anyone know the difference between the revised version with the suffix B of the upper strut mount?
Shock Mount (Upper, Lower) 8W0412377B vs 8W0412377
I'm looking to get a set of these and the one without the suffix seems to be cheaper but I can't find any details on what the B revision is for.

[Smac770]

They are interchangeable. B rev replaced no rev. If you can still get a no rev cheap, go for it. Why did they roll the revision? Who will ever know. A rev is for the adaptive dampers suspensions.

[Pandemic]

Thank you Smac, very helpful