ok... been to the sites, they left me very confused... I need somebody to throw it down in lameass terms so I can understand it. Just a rundown of what it does, how its installed, what options you have, and if anyone has some first hand experience that would be good too. Are these a good alternative to a $300 S-AFC? I am in serious need of more fuel and there needs to be a cheaper way. Im running a 90-91 LS ecu with a 97 B20 so Im probably on the lean side without boost. I just want to be able to run 5-7psi without grenading the B20 cause they're kinda spendy $$$

 

It's just like chip tuning, but you do it yourslef.
You need an EEPROM burner a solder download the ghettodyne program to change your fuelmaps, bigger injectors, and for boost you need to do a FTB hack, or you'll have to wait for the new Ghettodyne to come out with boost support.

 

http://pgmfi.crx-forum.org/

dont forget