I bought mine after getting that deal. I wanted to hate on it because it seemed like a gimmick but I’m all-in. It did exactly what I was hoping an actual tuner would do for the throttle/transmission(vs off shelf clip in product): rather than slow upsloping curve where you push a little,nothing, little more, nothing, little more, FULL THROTTLE! It smoothed out the whole pedal, you give 10% it gives 10% you give 40% it gives 40%, no more kink in the pedal or lag then sudden burst. Consider me very pleasantly surprised with this thing.
I just hope I don’t get any of those codes but I made sure to triple check all the connections that they “clicked” so should be good.