GFB FX-S (Street) Fuel Pressure Regulator - Up To 800hpInternally, like all GFB products you'll find unique features and small touches that make the difference between a good product, and a great one. For example, we use a double layer, double reinforced diaphragm with a burst strength exceeding 1000psi (68BAR)!, The inlet ports can be used in any configuration for fuel inlet (i. e. multiple rails) and pressure measurement (i. e. mechanical gauge and or electronic pressure sensor). This allows great