Anyone make a cheap muffler like Brilelli use to?
I only spent $25 for the engine. I don't like to spend more than that for the muffler.

DL can sell you one. Probably about $40. What's the hole spacing?

Get a side job.

I decided to make my own. I am getting a 3/4 x 1.5 x 2" square metal aluminum tube from onlinemetals.com for $1.04. I will just bolt some end plates on and drill the proper holes. A friend of mine can drill and tap the bottom for 5/8 in pipe for the exhaust pipe.