Here is a picture of the Baldwin PA2818 on an early 99, cost me $36 for the filter and $3 for the PVC fitting.
Shutterfly | Slideshow I think the Baldwin is a better filter than the NAPA but that is just an opinion. You can go to the Baldwin filters website and find an dealer in your zip code with a good price or I think there is a guy on this site that sells Baldwin brand filters.