1998.5-2018 Cummins 5.9L/6.7L Steed Speed Exhaust Manifold w/ T4 24V Angled Turbo Flange (T424VANG) Mid Performance you need the high quality

you need the high quality parts like these Gator Fastener Rod Bolts

this additive provides an extra layer of wear protection and enhanced lubrication

On the 4th and 5th Gen Cummins

you can still run an oversize head gasket or cut valve reliefs

1998.5-2018 Cummins 5.9L/6.7L Steed Speed Exhaust Manifold w/ T4 24V Angled Turbo Flange (T424VANG) Mid Performance you need the high qualitySteed Speed Manifolds are CNC Machined from 1018 Mild Steel Billet and finished with a satin black coating of Techline, these aren't your typical cheap cast or tubular manifolds. Steed Speed engineers some of the finest manifolds on the planet. The Techline coating is capable of handling up to 1700 degrees continuously and up to 2000 degrees for short periods. Steed Speed warranties workmanship for as long as you own the manifold and a 1 year warranty