I just posted a response on the "fractured exhaust" thread about heat in the pipes. The front baffle in the muffler section is a solid disc which directs flow thru the liner of the muffler section. The two rear baffles have holes drilled in them. After removing the front baffle with a hole saw, my pipes no longer glow.
As an aside, my wife and I discovered that when you hit tumble weeds during a wind storm, you just push them along if front of the Morgan. You must stop and remove them or the bits touching the exhaust will catch fire!!!
