honda is the only place i even contemplate buying anything but the most commonly reproduced items. I bought an ebay fender once.... never again will i make that mistake. OEM is really the only way to go. for weatherstripping you're wanting a good, airtight seal. why risk it with an aftermarket piece that cost half as much when you can get OEM quality on your first try? for more initial cost, less chance you'll get the wrong part, and a guarantee that you wont have to "trim to fit" anything, i'd save for the honda part.