RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)
Another thing I should mention.... I got one of those cheapie can type mufflers that Valley View (and others) have for sale for 26-30 engines. With minor mods to the header flange it's a bolt on for a DLE 20 and quiets this noisy bugger down considerably with no significant loss of performance. If anything the engine acts a little "peaky" like with a tuned pipe, but I can live with that.
Only thing I don't like is that the hose clamps that come with it are no good at all and will crush the pipe if you're not careful. @ $65 bucks or so, not bad.