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Wow talk about thread jacked! Guess I'll jump in too. People here really believe that a piggyback is a tune still? It's a signal modifier or manipulator. Meaning the companies working on them took the easy route in getting power. Instead of taking the time to break the dme's coding and programming, they just fool it's input and output signals to get end end result= increased power and torque. So "tuned", no. "fooled", yes. Call it what you will better or worse because of additional features, but it is not and will never be a tune. Therefore, since it is not built into the dme's logic, it will never be as smooth as a true retune. Period. To say that a tune isn't capable of advancing timing beyond the factory range is truly ignorant. The true tuners have complete control and can do what ever they want with the engine, when ever they want. Any of the piggy backs proactively increase the water pump speeds with higher boost levels? Nope, just a little food for thought there. Piggybacks are reactive, where tuning is proactive. Now try to argue that last statement.
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