Universal 160 PSI Adjustable Red Chrome Fuel Pressure Regulator & Oil Gauge Kit Designed to maintain the optimal fuel rail pressure for high performance & turbocharged engine; adjustable from 0 psi to 160 maximum fuel pump capacity Delivers vehicles' highest performance along with longer-life and more reliable operation; improves fuel delivery efficiency and prevents fuel starvation for more consistent boost and fuel flow Oil-filled design fuel pressure gauge for maximum and consistent measurement; gauge readings range from 1-11 X 100 kPa Adjustable fuel pressure regulator with 1:1 ratio Made from CNC machined light-weight aluminum