Our FASS Fuel Systems Signature Series Adjustable Diesel Fuel Systems are designed to be the most versatile high-performance fuel System on the market that allows for adjustable fuel pressures to meet the demand of high-performance Dodge Cummins 5.9L applications. Manufactured with the same motor used in our Titanium Signature Series Systems, this adjustable fuel System is rated at 100 gallons of diesel fuel per hour and offers adjustable fuel pressure from 1-20 PSI to customize fuel delivery for race or competition diesel engines.