- Aged 630 Stainless Steel
Cummins 5.9L 12V (1994 - 1998) - Aftermarket exhaust manifold only
Cummins 5.9L 24V (1998.5 - 2002)
Cummins 5.9L 24V (2003 - 2007) - Requires removal of factory heat shield
Cummins 6.7L 24V (2007.5 - 2018)
** Hot re-torque recommended. Check the torque of each manifold stud nut after the first heat cycle. Reference the installation instructions found here.