RallySport Direct carries a great selection of Fuel Pressure Regulator Gauges. If you have a built fuel system with an adjustable regulator, then it is important to have a fuel pressure gauge to set a correct static fuel pressure for tuning purposes. Additionally, the gauge can be used as a tool to diagnose issues you might have in your fuel system. For example, if the pre Read More ssure drops, then it can be an indication of a leak inside or outside of the pumps or lines, or it can be an indication of a weak fuel pump.
Choose from many excellent brands such as Aeromotive, Tomei, Turbosmart, DeatschWerks, and Fuelab. Most of these regulators will come with a 1/8 PT or NPT gauge port sizing to be a direct bolt-on part.Read Less