Bill, here is my suggestion for the slip joint if you are worried about
differential thermal expansion causing the joint between the two exhaust

pipes

and muffler to crack. I incorporated Jeff's suggestion on the down pipe
position to eliminate the possibility of a vortex choking the outlet.
A side cowl exit is shown. I will also redo the drawing of the tuned
version of this muffler.

Paul Lamar

 George Lendich wrote:

Paul,
So what's in the guts of that muffler, I though the tangential muffler had
rows of welded
flat to make a kind of square tube bent in a circle. One tube for the front
and one for the back
exhaust. Am I worng here !?
George (down under)

Nothing inside George. Anything you put inside is likely to burn up
as it does not get any cooling at all.

Paul Lamar

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