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  1. Piggy back vs flash over Uni-Chip tuner

    F150 Ecoboost Chat
    I read many of the threads on choosing tuners; and seems like others, such as myself, are concerned with being able to turn their truck back to stock to avoid warranty issues. I found out about a product Uni-Chip, that doesn't re flash the ECU, but intercepts the signals going to the ECU and...