Cummins Coolant Bypass Kit 2006-2007 Auto Trans Premium Fuel Injectors *Injectors are covered under warranty

*Injectors are covered under warranty only if proper fuel mods have been installed

This intake is designed for a truck more on the mild side

This intake will increase horsepower and torque

5 inch Work Stock Legal

-Flow Rate – 3

Cummins Coolant Bypass Kit 2006-2007 Auto Trans Premium Fuel Injectors *Injectors are covered under warrantyIncreased 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