MIG vs TIG: Picking the Right Welding Process for Exhaust Fabrication

The Short Answer

Both MIG and TIG can deliver strong, reliable joints. The best choice depends on material, thickness, appearance, and production rate.

When MIG Wins

High productivity, excellent for thicker sections and repetitive joints. Strong choice for brackets and flanges.

When TIG Wins

Precision and clean aesthetics—great for thin‑wall stainless where heat control and appearance matter.

Quality Considerations

Joint prep, heat input, fixturing, and gas selection matter more than the acronym. In‑process inspections and WPS adherence keep welds consistent.