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Re: Superchip or Programmer
They're all programmers. They save your stock tune and replace it with either a standard or custom tune depending what you buy. It gives you some flexability in selecting different octane fuels and the spark curve. I have an 02 5.4L and have done a lot of tuning on carbed engines. I decided to get the SCT Livewire and was totally impressed. Go to: Home and check it out. I bought mine thru mike and he's awesome. I felt an immediate power increase and got a 20% mpg increase also. The x3 calibrator accomplishes the same as the Livewire as far as tuning but doesn't do data logging. 
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2002 5.4L F-150 4wd
Baer rotors w/ carbon kevlar pads, Amsoil filter w/modified air box,
Thrush glasspack muffler, Optima battery,
Kenwood radio, Livewire tuned, Edelbrock shocks,
4R70 trans kit, 4.88 TruTrac rear carrier, Accel 21lb injectors.
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