David,

Two members recently did this job. The odds seem to be pretty good that you will break one of the studs off in the head.

Plan a lot of time and a lot of patience. If one of them breaks in the head, you have a real serious problem.

Check out some recent threads on it. One of the fellows managed to get the stud out using a fairly sophisticated setup.

Here are the threads:

http://www.peachparts.com/shopforum/showthread.php?t=118529&highlight=603+exhaust

http://www.peachparts.com/shopforum/showthread.php?t=115982&highlight=SDL+exhaust

http://www.peachparts.com/shopforum/showthread.php?t=120951&highlight=flex+coupling