I just picked up an 04 Kingpin with the big bore kit and stage 1 exhaust and air filter. The bike is in pretty damn good shape for its age. Since it's "new to me", I figured I'd do a thorough maintenance once over. The bike came with the K&N Victory air box with filter. I removed the box so I can clean the throttle bodies and air filter. The issue I'm having is separating the filter from the air box. The 4-10mm nuts holding the filter in place just want to spin and not loosen. Anyone run into this and suggest a solution for separating the two?