The DiabloSport MAFia F7373 provides real world plug and play control of your Ford vehicle's Mass Air Meter (MAF). Mafia allows you to precisely control and regulate MAF sensor voltage eliminating the need for Pre-fabricated custom MAF sensors. High horse power applications require custom tuning, or for stock applications the MAFia features 5% lean 5% rich The MAFia uses factory connectors and harnesses to attenuate the signal to a vehicle's MAF, and allows vehicles with stock MAFs to run beyond the standard 5 Volts. When a vehicle normally reaches 5 volts, it "pegs the meter" or maxes out the signal, keeping the vehicle from making peak horse power at high RPM.. The MAFia attenuates this signal, and will allow a vehicle to make up to 800 RWHP without "pegging the meter."