Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was designed to adequately cool a 300-350hp engine. When the horsepower is increased there is an increased demand

The 5.9L CumminsPowerFlo 750 is a straight forward, no inflated numbers, CP3 upgrade proven to support 750 RWHP with the proper complimenting modifications. Not only will it support 750 RWHP, but it also eliminates the factory fuel flow restiction that be
Every Fleece Performance CP3 is tested on our in-house engine simulator and pump test stand to simulate real world situations and ensure that each pump is ready to work for you!
Proven to support 750 RWHP with the proper complimenting modifications;Eliminates the factory fuel flow restiction that begins at 3000 RPMCost effective upgrade will allow you to maintain desired fuel rail pressure through your entire RPM range, as well a

Fleece Performance 03-07 Manual Transmission Cummins Coolant Bypass Kit w/ SS Braided Line