To be fair, this is totally UNSAT from MagnaFlow - interference issues with factory components, half the folks having 'drone' issues... I'd expect more from a big name company like them. I've thought about fabbing up a bracket, or trying to make another hanger to pull it off to the side a bit. I've also thought about just wraping that section with exhaust wrap to see if that supports the pipe enough to keep it from vibrating. If you end up coming up with something good, let me know.
-Kevin