Seems like I've seen a post some time ago that had info about a kit to do that.
Might have been basically a short elbow that pointed the rear of the muffler lower
and an extended hanger.
just might get lucky and turn something up in a search on this forum
Just FYI - Awhile ago there was a flurry of posts around doing something like this,
which I have done. But I'm not a long distance rider either.
http://s719.photobucket.com/albums/ww20 ... 20Tip%202/
Probly not legal in some areas, is a little louder than the stock setup,
if installed pointed in the right direction is only really significantly louder under
hard acceleration. Just barely hear it with a helmet on at steady road speed.
Sounds decent if you like a more powerful sound. Drops a few pounds, too.
And easy to do. Cost under $20.