Aw man, I thought you had the stock head pipes.....I don't have mine anymore I sold them a long time ago, just realized I sold you that stock muffler, lol I looked back through our pm's and I said I didn't have the stock head pipes in one of them......lol I though you knew you needed them but it wasn't a big deal because you had them or something.....might be able to find some on ebay or put a wanted add up on the UHE main page. Or at this point if you cant find the stock head pipes you could try a screen, I went to biggun main page and bought one right from them for like 15 bucks or something...that might help get you by for a little bit, I think they have quiet cones or something too for them but I don't know for sure if they fit our model.....go to big gun exhaust, then go to "parts" then go to "sparkys" and that's the screen, you don't need the spacer ring just the screen....I cant remember how much quieter but I know it was some quieter also a little power loss I thought tho too....