G'day Bon Scott

I cannot find NOS or repros of this hush-tone design.
Yet, it was the one used on SB AUS-made Kirbies.
Perhaps it was a Kirby design?

In any case, there is a clear sound difference between these mufflers
in spec and when burnt out! I hate noisy engines!

You have offered a solution here, and I am sure this will help
members down the track.

Many thanks for giving back.

----------------------------
Jack