I missed the Qs about our JB tuner. Sorry.
We did initial dynos this spring and saw similar increases to Burger's published numbers. There was nothing alarming in the datalogs regarding fuel air mixture. Our method included Dynos on our MD-250 eddy current dyno, with integrated fuel air mapping and logging via OBD port. If memory serves we saw a 42 ft/lb increase in torque and 30 whp. I'd have to go dig up the dyno plots to get the exact numbers.
We had an early beta example of the JB which needed one firmware update. Since that update the vehicle has performed flawlessly for 5000 miles.
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