FASS 2011-2014 Duramax 6.6L Titanium Signature Series - 165GPH Fuel Filter Fuel Air & Fuel and FASS Fuel Systems patented

and FASS Fuel Systems patented air/vapor removal process

this adjustable fuel pump is rated at 240 gallons of diesel fuel per hour and offers adjustable fuel pressure from 1-55 PSI to customize fuel delivery for race or competition diesel engines

engine performance and extend the life of your diesel injection system

4L Titanium Signature Series 250Gph (TS F16 250G)

2010-2014 Dodge Cummins 6

FASS 2011-2014 Duramax 6.6L Titanium Signature Series - 165GPH Fuel Filter Fuel Air & Fuel and FASS Fuel Systems patentedFASS Fuel Systems Diesel Lift Pump 2011 2014 GM Duramax Lml 6. 6L Titanium Signature Series 165Gph (TS C11 165G). A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn't come with a factory lift pump like other diesels. This requires your CP3 injection pump to pull your fuel under a vacuum, adding additional stress to your CP3 Pump and risk introduce additional air into your fuel.