I have a 2" tear in my boot that connects the throttle body to the engine. Just thought I'd throw it out there and let everyone know that this piece will break down. My airbox boot also seems alot softer than a newer airbox that I installed for a friend... Lots of heat in this area. My symptoms involved a high idle. I then proceeded to overtighten boot causing a greater tear. Quick fix while riding: bring a bike tire patch kit along with larger patches that you can cut to size...for all you long distance adventure riders. Duct tape may even work in a pinch...