>   The runners are .065 304 SS.   The muffler is .075  304 S that a
 > sheet metal shop sheared for me.  The muffler cost $12.00.
 >
 > We will see how noisy it is.  I am really hoping that it will be
 > sufficiently quiet.  In the even it is not, the  45º down tube can be
 > spin teched with drop in baffles.
 >
 > I set aside September for the exhaust system so it looks like I get
 > three weeks off.     Jerry

1. It looks like the entire weight hangs off the exhaust manifold flanges.
When the material gets hot, will it have sufficient strength? Or am I

missing

something.

2. You are using 304 SS. Others have recommended 321 SS. I don't know

enough

of the differences between the SS's, can someone comment on their relative
applications and limitations?

Bill Schertz
KIS Cruiser #4045

321 SS is better but cost is an issue. One can always trade a bit of weight
for cost. Instead of .049 321 SS go to .065 for 304 SS.

Paul Lamar

  Bill makes a valid point. Are there slip joints, or will there be ball
joints, or some other means of accomodating thermal expansion? Is there
some sort of semi-flexible suspension planned for the muffler so that its
weight is not suspended from the exhaust flange?

  It looks great Jerry. Amazing how quickly you got it together.

Mike Wills

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