The hangers are pretty shitty. On top of that the piping route is awful... one bend is too wide and it contacts the frame.
What I ended up doing was using a small jack to pull down on the exhaust pretty hard, then i sandwiched a bunch of folded up aluminum foil between the pipe+hanger and the frame... When I let the jack out it compressed the block of aluminum foil... and now there is no rattling.
