Sad to see this as the XG7317 is the filter that I've been using for both the Altima & Civic in my signature. I may try to grab some old stock at Walmart before they change...if this is even possible.
If you have something like a farm store in your area check there. The Rural King store in my hometown still has a massive amount of old Ultras in the Rank Group packaging for only $7 per. I will probably clean the hem out of XG7317 filters the next time I am there.