Well, here's the deal. I bought a slip-on and now wished I bought a whole system. I was browsing around and noticed that FMF sells their powerbomb head pipe indvidually. Since they sell it individually from their mufflers, shouldn't it bolt up to a stock muffler, which would also mean it will mount up to my Muzzy since my Muzzy mounts just like stock? Am I missing something? Is the head pipe really worth it performance wise? Thanks guys!