VP Coolant Bypass Kit 1998.5-2002 Fleece 2015 The larger suction tube improve

The larger suction tube improve fuel delivery and work perfectly with higher volume fuel Systems

higher boost and more power

The D-Max Flow Enhancer has been designed to provide your Duramax engine with a constant 8 PSI fuel pressure

Freedom Series Heavy Duty Street heads Include:

CP3 upgrade proven to support 750 RWHP with the proper complimenting modifications

VP Coolant Bypass Kit 1998.5-2002 Fleece 2015 The larger suction tube improveIncreased 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