<<<do you know if it extends the life of the exhaust pipes?  now that would
really be something if it could reduce the rusting out of the exhaust
pipes.>>>


If you remove the pipes, paint them with a good paint (even have then ceramic
coated) and then wrap them, the paint might not burn off and then be better
able to protect the pipes.

If your pipes are rusty to begin with, removing them and painting and
wrapping them can extend the life.

Robert