What Are The Differences Between a Piggyback and a Full Tune?
But does the AMR or other ECU tunes change the rev limiter or transmission?
Does the piggy back tunes (JB1) change air fuel ratio/timing/throttle response?
Just trying to nail the down the EXACT differences between a 2000 dollar FULL tune and the 380 dollar JB1 tune.
I've asked in several places and never get an answer. What's the difference between a piggy back and full ECU tune? Do they edit all the exact same parameters?


