Well, I just went through my box of engine parts and found the mufflers I need for my application so I won't pursue this idea at this time. I have been wanting to make a mousse can muffler for a .36 with one of those tin bottle looking coke cans but haven't gotten around to figuring out how I was going to do the header without having to buy it. (I'll end up spending more money making it myself)
Flying season is almost here and I am only 1/4 of the way done with the plane I was supposed to have done this spring. No need to start another project until that is done I guess.
Thanks for information.