Our mufflers are a double walled shell. The end caps are roll-seamed. The outer wrap is smooth with no exposed welds. The baffles and end caps are a heavy gauge material.
- Inlet & outlet nipples cannot be any longer than 7"
- Regarding 4" round mufflers with an offset in/offset out position; the nipples cannot be any larger than 1½"ID
- Regarding 4" round mufflers with a center in/center out position: the nipples cannot be any larger than 2¼"ID
Use this listing to build your own custom round muffler (
within our above parameter's) . You tell us what you need and we will get it built for you. Select .
There will be no returns on custom built mufflers so be sure you triple check your measurements.