Hi i have a 2003 330 polaris trail boss and I was thinking about putting a K&N air filter on it is there one that would fit my bike and what would it do for it like speed wise. THANKS

Yes you can put a k&n filter on. I have the part number but have to find it. It will give you a little better take off but thats about it. Hot seat has a kick a$$ kit for the trailboss. I have a friend with the kit and it really moves.

would this hotseat kit work on an 02 325 magnum?

yes you can get one but most dealers will suggest not to but my friend has on his 500h.o and he hasnt had a problem or on his recon. just make sure you get a precharger for that added protection in dusty conditions!!!