Rule 5.D states ..."Length of Exhaust/muffler assembly must not extend past the rear edge of the rear tire." and this would include rule 7.D which is same topic just different class.
I would suggest that if body rule changes are taken that this rule say..."may be extended but must be securly fastened to prevent vibrations breaks and loosening."
Jonathan
<small>[ October 26, 2004, 12:23 AM: Message edited by: JonAmo ]</small>