Universal Adjustable Fuel Pressure Regulator with Gauge & Hose Kit (Gold) Designed to maintain the optimal fuel rail pressure for high performance & turbocharged engine; adjustable from 1-15 PSI to 140 maximum fuel pump capacity Deliver Vehicles' Highest Performance, With Long Life & Highly Reliable Operation Adjustable Fuel Pressure With 1:1 Ratio Made From CNC Machined Light-Weight Aluminum