[Redog]

Update::

I drove by the place that "sold" the filters. Turns out I found a machine shop with an engine dyno and everything within 5 minutes walking from my house, but in no means a retail store.

So I looked at the Wix web site again, found this little "rinky dink" store in Feasterville-Trevose, PA that sells Wix filters so I stopped by on my way to the mall. There was 5 51040 size filters on the shelf. They look to be constructed very well so I'm happy. I'm going to be changing my oil on Wednesday after I do the water pump (too damn cold out to do it today, when Wednesday's going to be 40*) if I feel up to it. I'm doing this after work, so it depends on how I feel. I might just change the oil first, then do the pump