Bought the filter for $25 and saved the $75 in labor usually charged by the dealer, plus a couple of hours of my time driving and sitting around waiting for it to be done.  It took me about twenty minutes and it wasn't that hard (see pictures in the order they are shown):

(download)

Click here to download:

Just_saved_75_by_changing_the_.zip (1.85 MB)

1. Remove the glove compartment's holding clips. This is the trickiest part. Move the glove compartment box to almost its closed position, press the small pins at the back of the clips and push toward the inside of the glove compartment; then rotating the clip gently until the rest of it passes through the clip hole so you can pull it out.
2. This is how the holding clips look.
3. Open the glove compartment door completely and out of the way.
4. Remove the cabin filters' protective cover.
5. Remove the first filter carefully. It's a little hard so move the filter around a little bit instead of pulling it out straight.
6. Slide the second filter to the left so that it's completely visible and then pull it out like you did with the first filter.
7. This is how the old and new filters look (big difference).
8. Remove the old filters from their plastic frames and install the new ones, paying attention that the arrows indicating the air flow are in the same direction on the frames and on the filters.
9. Push in the first filter
10. Slide it to the right.
11. Push in the second filter.
12. Reinstall the protective cover
13. Reinstall the glove compartment's holding clips (again, this is a little tricky).
14. Close the glove compartment.

If you want to see this process in video, I found this on Youtube: .   Very helpful.