The Factory Fatty exhaust has the same shape as the Fatty but with different features:
- Made with 2 layers of steel.
- 19-gauge steel used on the header for optimal strength and durability.
- 20-gauge steel on the body and rear section for further weight savings.
- The welds are hand-hammered after the marking process for a machined look.
- Raw, uncoated, and oiled finish.