NEW GENUINE AEM FUEL PRESSURE REGULATOR. DESIGNED, TESTED, AND MANUFACTURED IN THE USA! SEALED IN FACTORY AEM PACKAGE. AEM PART # 25-300BK. THIS REGULATOR CAN BE USED WITH BOTH E85 AND GASOLINE. Universal Adjustable Fuel Pressure Regulator is capable of supporting enough fuel flow for engines up to 1000 horsepower. Patented interchangeable discharge ports enable […]