Most modern fuel injected vehicles run a fuel pump in the tank and run much more fuel than it is needed to the fuel rail. A regulator keeps a certain amount of fuel pressure in the rail and then sends the rest back to the tank. However, tuners upgrade the air intake system as well as the exhaust system and often neglect that more fuel is needed to make those mods perform at their full potential. Auto Dynasty's Fuel Pressure Regulator is adjustable so that you can tune the fuel pressure to your needs.
Professional Installation is Highly Recommended Installation Instruction is NOT Included 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 Fuel Pressure Regulator can deliver high performance, with long life and high reliable operation Adjust from 0-160 psi to maximum fuel pump capacity Adjustable Fuel Pressure Regulator with 1:1 Ratio Liquid Filled Gauge for Maximum and Consistent Measurement Oil-Filled Design Fuel Pressure Gauge for Maximum and Consistent Measurement Adjustable Fuel Pressure Regulator with 1:1 Ratio Made of CNC Machined Light Weight Aluminum Material Provides Two -6 AN Inlet Fittings and One -6 AN Return Fitting Comes with Fuel Hoses, Bolts, Connectors and Installation Kits Fitment: Universal Fit to Most Cars and Trucks