Nicely put Todd. When i posted what i was told about the exhaust it wasent here say. I was told the info to me from the person that was selling the parts. Anyone that has sold me anything knows i always ask about the quality and how it is built. I dont remember the pipe thickness of voodoo exhaust or ufo but when i asked both of them ufo told me a thicker answer. And voodoo told me ceramic on the out side only and it would cost extra. I dont know who holds the patent on the exhaust and i dont care. Call both of them and ask lots of quistions. I never have owned a voodoo exhaust or saw one on a bike so all i can say is what they told me but i have owned a ufo and i can tell you it was top quality and it fit nice and tight to the bike.