Thanks for that.

I was looking at high temp silicone tubing today for that very thing. It is to connect the header to the can. I wanted some 3/4" (~20mm) ID. It is tough to come by. Is there an automotive application for this material? It woud be easiar to tell the auto parts something he understands. If I go in asking hight temp tubing to connect a header on a model engine to a metal Budwiser can with a folding chair led skewere through the midd he will be very confused.

Is there a metal flex tubing that will work?

I was reading up on aluminum beer bottles as mufflers. It looks promising.

I ran the Echo 65cc with an HDA carb and a gutted chainsaw muffler today. It go 7850 rpm with a Bambula 22x8. Things are looking up.