![]() Q: Will installing an aftermarket fuel pressure regulator add horsepower to my vehicle? A: Not directly, but when adding an aftermarket fuel pressure regulator and high flow fuel pump to your modified engine, it can help deliver the additional fuel needed for optimum performance. With a high performance motor, an adjustable fuel pressure regulator is needed to increase the amount of fuel given to the engine since larger injectors and fuel pump will be utilized. This plug is included with the MWR fuel rail / FPR kits. Install this if you have added an external fuel pressure regulator and return line. Depending whether the idle is high or low the fuel pressure regulator opens and closes giving more or less fuel. Solid aluminum plug, replaces your in-tank fuel pressure regulator. The car's computer does not control the fuel pressure regulator it is controlled by the engines vacuum. Q: What is a fuel pressure regulator? Why buy a fuel pressure regulator? A: The fuel pressure regulator regulates the fuel pressure that goes into the engine. Q: How do you install a fuel pressure regulator? A: You disconnect a vacuum hose and one fuel line on your fuel pressure regulator and replace it with the new adjustable unit within minutes. ![]()
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