As far as I know, K&N does not make the air filter. It is possibly because there is not enough business to open a product line. Only Californians with the 85 model are buying it. If K&N has it, I still prefer the OEM air filters.
The air filter housing of the traditional model comes loose easily due to break down of the mounting screws. You do not have this problem with the 85 Calif model.
Let me know if you have problems finding the filter.