AV8TOR,

What are your thoughts regarding an exhaust and muffler for this engine? As you will see in the pictures and videos, I have the standard ugly Stihl chainsaw muffler on it at present.
One idea that was put forward at our recent flying event by a fellow experienced power plane flyer, is to make up an exhaust header with double bends (not easy to get the small radius and I don't know anyone here who could do it) which would bend down first, then back in line with the fuselage. Then to fit a silicone flexible short length of hose to that which would go to a canister muffler. The design of the muffler itself is a separate consideration of it's own, of course. Something which I know little of.
A half thought out alternative, is to make round muffler that bolts straight onto the cylinder like the standard one does.
I have started a thread about muffler design, but there has not been many developed suggestions put forward yet.