I can just eliminate the need for 99% of people to post by saying get a Smarty or Smarty Jr.
I have an Edge Juice w Attitude but don't think it does great for adding mpg's. I do however think it is great for gauges and safety backdowns.
I have an MP-8, which does an ok job increasing MPG's. But pressure boxes can be hard on injectors.
Also, I have a Bully Dog Triple Dog which I am currently running on Crazy Larry, which seems to give the best increase. Except for when I run the Bully Dog and the MP-8 together. Then it is even slightly better.
i have the JR. and i actually saw a drop in MPG--- buttttt i was in it ALL THE TIME for the first 2 weeks, then i startin slippin the TC. i bumped it back down to level 1 and i'm seein about a 3mpg increase, i'm also not in the throttle either. if you don't want to spend 400 on a programmer or want that much more power, i'd look into an edge mileage max or a quad max mileage- do a search for it- most are getting ~3mpg increase.
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