HOME MADE EXHAUST SYSTEM

What do you consider "made"?
I bought sections of straight 3 1/2 tubing, mandrel bends and angles, a couple turndowns, and some giant mufflers. I machined my own header and muffler flanges, and cut and pasted till it was where I wanted, then welded it all up.
It helped that I had access to the weld shop, machine shop, and a ten foot industrial band saw, at work.
Would I do it again without all that equipment now that I'm retired? NO! I sure do wish I had taken it off and painted it or coated it after I welded it up, before I ran it.