In some ways the turbo removes, rather than adds, complexity. After all

these years we're still looking for a muffler that holds together. A few

of the "prop on the front" guys may be getting close

Perhaps you are generalizing a bit too broadly.

I certainly not anti turbo; but based on what I have read on this forum, it clearly adds some complexity. And I have an inconel tangential muffler, and a SS secondary muffler, both inside the cowl, on a pusher – and both are doing fine approaching 150 hours, and nothing in the cowling is being damaged by the heat.

Al G