FASS Fuel Systems Adjustable Fuel Pressure Regulator (FPR1001) Part No: FPR1001 Supersedes Part No: FPR-1001 The FASS Fuel Systems Adjustable Fuel Pressure Regulator is intended for aftermarket performance applications requiring higher fuel pressures than a typical daily driver. These applications can vary from drag race vehicles, competition-pulling trucks, or high-performance marine applications. For your convenience we have pre-drilled and tapped a fuel pressure gauge port that will make adjusting your regulator simple, eliminating any guesswork. As an added performance benefit, we have also engineered a boost compensation port. This will allow you to run a line from your manifold to increase fuel pressure, very beneficial when under active acceleration and fuel demand has been increased. Universal Adjustable Fuel Pressure Regulator Features: Adjustable Fuel Pressure Gas or Diesel Applications Built In Fuel Pressure Port Boost Compensation Port ½ Inch Fuel Lines