If the filter is pointed up, like on my wife's car, you're right it doesn't matter. (dome down, threads up) Honda dealer is slightly cheaper than Napa Gold... but they're all selling a A02 filter. all 3 dealers told me the A01 is disco'd. No way am I running a fram job with honda letters on the outside. So I have to buy the A01 online. Which aint a bad deal. That one website has everything for hondas!! Fog light kits, Front end masks etc.