First I want to just say that I know this has been a huge subject on here. But has anyone seen or heard of anything like this to kill drone before (BRANCH RESONATOR). I saw this on several other forums talking about it, thought I'd throw it up on here see if any one else had heard of this. Here are some links from 3 other forums talking about it. Let me know what you guys think, I think i might get in touch with a local exhaust shop and see what they say about it.