Ben Baltrusaitis wrote:

Does anyone run their 20B without a muffler?
I was told by an engine builder that the sound of the 20B is not as

intense as the 13B and could be run without a muffler. He said the sound was
much like

a

piston V-6.
Thanks!
Ben

Thomas Parkes wrote:

Ben:

I run my 20B without a muffler--but I do have a Garrett TE-06 turbo which
acts like a muffler.  I sometimes forget to activate my noise-cancelling
headset, with no adverse effects.  People on the ground tell me it sounds
powerful but not any louder than a Lycoming.

Tom Parkes
20B powered Lancair ES

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