Second picture
My new coax muffler.

Brian

Looks like the holes in the inner pipe need to be larger
towards the aft end.

Paul Lamar

It's a little too late for that, I already welded the assembly together. But, I did pinch in the exit end slightly to increase the pressure toward the exit end of the pipe- it's not a huge obstruction, but enough to have an effect,I hope.

Brian Trubee

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