Diablosport Predator Programmer 99-03 F150 4.6 5.4 99-03 Harley Davidson 5.4 99-02 Expedition 4.6 5.4 99-03 Navigator 4.6 5.4 99-02 Excursion 5.4 Performance Tune for 87,91 octane IN the Box !!! part # u7153 High Level of Performance *Programmer will Displays and Clears Diagnostic Trouble Codes that throw your check engine light * Adjusts REV limiter *Injector size adjustment *Adjusts Speedometer for gears and wheels/tires * Rear O2 Sensor On/Off(off-road exhaust) *Speed Limiter Disable/Enable *Adjusts Shift Timing *Internet Updates * Adjusts Timing *Only takes 5-10 Minute Installation, NO TOOLS NEEDED * Dyno proven Up to 20 horsepower Gain (Power gains are at the rear wheels!!!!) Up to 30 foot pounds Gain Programmer increases horsepower and torque by re-flashing the engine control unit. Increase Fuel Economy up to 30% -The Predator will give you more horsepower and torque gains. -The Predator connects into the OBDII port underneath the dash to the right of the steering wheel. Once it is plugged in the stock software is downloaded and saved in the programmer and the new program you chose is uploaded into the truck's main brain. At anytime you can plug the programmer back in and change it back to stock. -This Programmer is easy reading and use. Have seen increases in FUEL mileage up to 3MPG, depending on driver habits

Easy to use.