Does anyone know if there is a Pro-Seal or something like it for the WR450? I checked a website selling them and they have them for the following models: YZF400 ('98-'05) YZF426 ('98-'05) YZF450 ('98-'05) WR400 ('98-'02) WR426 ('98-'02) which makes me think the electric start changed the shape of the air filter and they don't fit the 03 and newer bikes. Does anyone know if that's true? Is there another product that can be used in place of grease on the air filter? I'll grease it if I have to but if I can spend $10 and have something that works just as well without the mess I'd prefer it.