No me but my dad. He bought a 90 Mustang 4 banger without an engine. The exhaust system was schedule 40 Stainless Steel pipe all welded together with 90's and 45's and a home made muffler. Weighed over 100lbs manifold (without the manifold) to tip!
That's amazing! Lol. On my rock crawler I made the exhaust out of 1/8 wall Dom tubing. It would grow over an inch in length as you would drive it because it would hold so much heat.