structure

Hi. I have some stange noise comming from..somewhere outside the engine, i think and hope so anyway.! Someone told me that vmax stock pipes are double layer, and in old bikes inner layer can come off/loose and cause "glinging" noise. Is this a fact?? It would be great to have fault in...

http://www.cnet.com/news/watch-firefighters-blast-drone-out-of-sky-with-hose/ An interesting article, a good video, and possibly unforeseen consequences for who filmed it. Read, and watch. What do you think? https://www.youtube.com/watch?v=zzTqjmp1yN0&feature=player_embedded