How did you weld the inner baffles to the outside can?

re

Marko

<snip>
 I actually built a my own version of a SpinTech, but I made it 6x6x18 using
.062 316SS and it turned out to weigh 14lbs. While it was a good exercise in
muffler design, I will not use it, but will make another one 3x6x12 using
.035 321SS.