Vortech's Super Fuel Management Unit (Super FMU) is a tuner's dream. It permits complete tailoring of the fuel pressure curve relative to manifold pressure, including upper and lower limits. The Super FMU can be used in a series or as a stand alone component. Its super high-flow capacity can handle large single and dual pumps while fluctuation and pressure creep is eliminated. The unit can also be used to adjust static pressure. Features include four pre-calibrated gain ratios: 7:1, 5:1, 3.25:1 and 2.5:1. Easily replaces our standard non-adjustable FMU. Not Legal for sale or use in California on street driven vehicles.