We use and sell both FAST and DFI. We sell BS3, but have not used it yet. DFI seems to be the eaisest with its Q and A to help you programing. FAST is not to bad either. But especially for a forced induction car, I would count on using a proffesional tuner.
We are using DFI on Lisa's EmptyNest Project, so that pretty much tells you where we are leaning these days.
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Frank Serafine
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