Quote:
Originally Posted by tom @ eas
Unfortunately, all piggybacks operate by manipulating values read by the DME to get the desired results. This can lead to seeing inaccurate data shown on the display as it's merely reporting what is seen from the DME.
Getting your M3/M4 dynoed will show exact power to the wheels.
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Thanks Tom, as I thought. I can definitely tell that the car is quicker.