Just the shells, TJ, the 1/8" thick SS washers are history.  I have
concluded that no reasonable thickness of metal will stand up to the

exhaust

pulse for long if it is perpendicular to the shock wave.  I believe that

if

I could shape them into cones where by the shock wave would hit the side

of

the cone  at an oblique angle  would probably survive - now all I have to

do

is find some {:>).

Ed

Ed,
There plenty of SS cones available in 1.6mm, I'm using them in my exhaust
which is a joint venture design with Bill Jepson - the idea is to redirect
the shock waves but not restrict the exhaust, as you have alluded to.
George ( down under)


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