AEM's High Cap Universal Adjustable Fuel Pressure Regulator (PN 25-305BK) is the perfect solution for racers who need reliable fuel pressure in high-boost vehicles and racecars that require a large volume of fuel delivery. A longer spring provides for a wider range of adjustment (from 40 to 130 PSI). An easy-to-adjust set screw stands up to repeated adjustments. 

• Universal fuel pressure regulator adapts to virtually any vehicle
• Longer spring for wider range of adjustment (40 – 130 PSI)
• Single large return orifice accommodates very high flow rate pumps
• Boost dependent rising fuel pressure rate (1:1)
• Three -6AN (9/16”-18) ORB O-ring style inlet ports (2 inlet, 1 return)
• Easy to use adjustment screw
• Integrated 1/8" NPT gauge port
• 5mm (3/16") vacuum hose
• Alcohol fuel and race gas compatible
• CNC-machined from 6061-T6 billet aluminum
• Patent # 6,298,828