Aeromotive A1000-6 Injected Bypass Adjustable EFI Regulator (2) -6 Inlet/(1) -6 Return. The A1000-6 Injected Bypass Regulator a Performance EFI regulators designed for medium to high horsepower applications. Both regulators feature Aeromotive's high-flow design, superb pressure control and legendary durability. On the street and at the track, these pressure regulators have logged more miles, more laps and more passes than any other performance EFI regulators in the world!