I have one of those Bruns Mufflers.  The "ceramic" packing lasted about
   an hour before it turned to glass beads, and that was with the turbo
   softening the exhaust.  I am still using the SS housing, but I am not
   sure if it does anything.  It has lasted for 70 hrs. with only minimal
   deterioration.  I think it is polished 304 SS.

As I mentioned in an earlier reply, you need the stainless steel
scrubble packing option for a rotary/high heat application.  You will
need about 1 lb to repack a 2.5" inlet muffler.  About $30/lb from Burns
if you want to repack it.

For those of you not familiar with scrubble, it is basically long
strands of curled machining fines off a lathe.  It won't wilt and mat
down like stainless steel wool.

Mark Sipe


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