AEM High Volume Fuel System components are engineered with fuel delivery capabilities necessary to support high-horsepower engines. AEM High Volume fuel rails, fuel filters and adjustable fuel pressure regulators are designed to install using factory hardware (except Universal FPR), and are pre-tapped to accept AN fittings from custom fuel lines. AEM's fuel rail and adjustable fuel pressure regulators will support up to 1,000 horsepower, and AEM's fuel filter will flow for up to 500 horsepower.