Not sure whether to splurge for the OEM filter from the local dealer for well over $20; spend just under $20 for a Fram or NAPA Gold; or cheap out at $10 for the plain vanilla NAPA base model. Lots of them for under $10 on Ebay too.
Is carbon/charcoal/baking soda-impregnated filter media worth the extra cost? I mean, if you ride with the window open, the filter doesn't do anything anyhow!
Better have the dealer do it otherwise they will claim it is dirty which they can do without even looking at it. I just had a service at 103k miles where the mechanic stated I needed to have my sparkplugs replaced on my 06 I4 Accord because they were in "poor condition" -- even though they had changed them just 5000, miles earlier at 98k miles. I guess they have some sort of intuition or magical ability to make such a determination.