Ahh hell just so you dont have to look all of that up.. Pretty much what it does is adjusts your Air to fuel ratio through out your power band to provide more power.. There is no point in running 93 octane gas in a stock vehicle because its tuned from the factory to run on 87. I have an 87 performance program, 93 performance and 93 torque program on mine. It works very well and you can immediately feel the power difference after programming the computer to one of those settings. Its the best spent money I have done and it does improve gas milage. I went from 22mpg mixed driving to 27mpg on the 93 octane settings. I hope this helped just a little bit.
2006 Ford Ranger Extended cab, 2-door, 4.0L SOHC w/5-speed automatic, leather interior.
Explorer Express Blower, 80MM Mass Air Flow Meter, 4.10 Limited Slip Rear End, Trans-go shift kit, Snow Performance methanol injection kit.
26,000 miles on the blower and 29,000 on the engine and NO ISSUES! Now that's what I call quality with an install and knowledge of an engine.