Fleece Performance 03-07 Dodge 5.9L / 04.5-12 6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) 2008-chevrolet-express-2500-esi8353127 Smoked Acrylic See Through Airbox

Smoked Acrylic See Through Airbox Lid

Easily adjust boost levels from under the hood with the turn of a knob with no additional tools needed

Cools Exhaust Temperatures While Boosting HP And Torque

Hi-temp mil-spec silicone Nomex diaphragm

Fleece Performance 03-07 Dodge 5.9L / 04.5-12 6.7L Cummins Coolant Bypass Kit (03-07 Manual Trans) 2008-chevrolet-express-2500-esi8353127 Smoked Acrylic See Through AirboxIncreased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5. 9 6. 7L Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Our coolant bypass kit adds a secondary