The AFE "Torque Tube" for the 1994-2002 Dodge 5.9 Liter Cummins diesel is a Roto molded Polymer tube and silicone hose assembly that connects the Stage I or Stage II intake system to the Cummins turbo changer assembly.
The "Torque Tube" provides the Cummins with increases, smoother air flow for more HP and torque as well as reduced EGT.

AFE: 54-10079