2004.5-2007 Duramax LLY/LBZ Powerflo In-Tank Lift Pump (FPE-34789)The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance. The PowerFlo is the only in tank lift pump capable of supporting up to 800 hp! The PowerFlo lift pump provides positive fuel pressure to the CP3, decreasing strain on the injection pump and supporting up to 800 hp. Features: Direct OEM In Tank Replacement: The PowerFlo Lift Pump retains the factory fuel lines and installs in less

promoting better spool-up and lower temperatures

4L Superduty sound great

Manufacturer's Part Number: HS54557

Please note that we will be adjusting horsepower rating as we do more R&D on these units

7 Cummins engines deliver can crack or even shatter the stock flex plate

but still want excellent street-ability

Dodge 03-04 Injector Set: Brand New injectors flowing at 30 percent over

the weld quality

4mm on the original to 7

With less weight over the rear tires and the high torque output of Duramax engines

and cam timing issues caused by high cylinder pressures in engines over 500 horsepower

This kit includes all required block-off plates