I have a stupid question about the catback, it comes with a exhaust support ring, but what is the metal rod that has a hook on the end used for? i do not have the exhaust out yet since the bolt holding the mid pipe to downpipe broke and the other side stripped. I have to take out the downpipe and exahust in 1 whole damn piece. and the support ring do you use a bolt to hold the ring together or does it hold itself together by the exhaust hangers? hold these are not too stupid.. I have been working over 60 hours a week for the last 5 weeks and then come home and work on this the last few day and then I had to format my pc (damn 5year old in puerto rico made spyware and installed it on my pc) so I am very tired.