I swung past Rosenthal Acura on 355 in Gaithersburg this AM and they have an awesome price on our filters... only $9.99 and it includes the drain plug washer (which if anyone wants them locally, you can have 'em since I'll be using the oil extractor). I haven't ever seen a price that before low before. I don't drive the NSX much, so the 5 that I purchased will last a long time!