Is an EFIE important to have with my booster?

[hydrotinkerer]

so, does anyone have the radio shack resistors working or should I just get the efie?

I got an Efie from Fuel-saver.org. If I'd know it was going to work that easy I would have done it 2 months ago. Every time I turned the gen on my mpg's went down. Just got efie hooked up and first test mpg went up 6mpg.

[pj91gsx]

I got an Efie from Fuel-saver.org. If I'd know it was going to work that easy I would have done it 2 months ago. Every time I turned the gen on my mpg's went down. Just got efie hooked up and first test mpg went up 6mpg.

cool. im getting one this weekend. I dont know where yet. one guy sells them for 25 on ebay, he makes them and gives a 2 year warrenty on them.