After a whole lot of practice TIG welding mild steel, I swapped out the ER70S-6 mild steel rod for some 308L stainless steel rod and was able to fabricate a stainless steel exhaust system on my C10.

2. Holding the TIG Torch.In general, the proper way to hold the torch is at a 45-degree angle to the work surface. Angle the filler rod in with your other hand, also at a 45-degree angle.