Their website says these will be called Purolator Tech now. They don't say the bottom end filters were improved, only the One and the Boss. I may try the Boss someday in my small version which has the round holes and nice adbv system. They are pricey though and seem to be not widely available. Just cut open a Bosch D+ and thought it was a good design. I don't see the Boss as having the problems with tearing, as the media is already well tested and used by MB. It seems it is the same at least. I would rather they sell it for less and not worry about patenting the box and using an expensive paint scheme.