If you look on other "performance" car sections on e-bay, you'll notice the same "device". When I was tricking out my '99 M3, I bought one just for the hell of it, although I already had my ECU re-programmed by RMS. Well, I got it, opened it up . . . . and, well, just so I don't get sued, there's NOTHING in there that's gonna give you any change in any performance parameter !
If you look on other "performance" car sections on e-bay, you'll notice the same "device". When I was tricking out my '99 M3, I bought one just for the hell of it, although I already had my ECU re-programmed by RMS. Well, I got it, opened it up . . . . and, well, just so I don't get sued, there's NOTHING in there that's gonna give you any change in any performance parameter !
Looking through the guy's feedback, I'm simply amazed at how many of these units he's sold, and how many people left feedback like "wow, I can really feel a difference" and "this works great".
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