AEM's Universal Adjustable Fuel Pressure Regulator is capable of supporting enough fuel flow for engines putting out up to 1,000 horsepower! AEM incorporated their patented interchangeable discharge ports to enable the regulator's output to match the output of any fuel pump. AEM tapped their universal fuel pressure regulator to accept a -6 AN or 9/16x18 fittings and includes a 1/8 NPT port for a fuel pressure gauge or pressure sensor pick up (both sold separately).