OK, I talked to Mark Sipe and we argued over piggybacks. I understand the rule now. You can only modify the signal coming into the ECU. Piggyback intercept the signal and modify the signal coming in and going out. So that's why they're illegal.
Paul, you're not running a piggyback right? Doesn't your guy just flash the ECU? Which begs the question, why would anyone run a piggyback on your car?
Paul, you're not running a piggyback right? Doesn't your guy just flash the ECU? Which begs the question, why would anyone run a piggyback on your car?
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