I had put a longer bolt on the header heat shield and put a jam nut on it. I rode it for a while after that and didn't have any trouble but I know that cheap heat shield on the fire wall on the passenger side developed a hole not through the plastic but that lousy silvery stuff. When I go back to bring my machine out here I was thinking of getting some kind of heat wrap for the header pipe, but I'd also like to replace the muffler as the heat from the current one is very concerning for me if I'm driving in dry forested area's. What's all involved for installing this Muzzy exhaust system and the approximate cost? I was hoping for a simple replacement of the muffler I wasn't too interested in having to chip or tune the fuel injection.