I have a stage 2 kit (filter and air box delete cap/bracket) for a Royal Enfield Himalayan. I have put the bike back to stock for a variety of reasons, so now I'm selling off the extra bits. I probably have maybe 200 miles or so on the filter. Asking $100 shipped in the U.S. or local pickup. I may consider a trade for a halfway decent GPS unit if you have something. Feel free to ask me any questions.