[David Hodgson]

My engineer flagged shielding as a potential issue as the intent is that you are not to exose anyone to the possibilty of burns. I didn't want a hassle at inspection so I made a full lenght shield from perforated electrical cable tray covering the muffler and collector. Was effective and cheap.

Rob, if you go live pipes, you want to make sure the are well shielded, don't want to burn the bride or you'll never live it down, and reasonably well muffled. You get home pretty beat up after a day out in the sun and buffeting wind with a constant, although sweet, roar in your ear all day.