Any progress being made with cracking the codes?

 

I put a JET chip on my 2011 6 cyl Durango. Observed ZERO improvement on Day 1 and ZERO improvement after 200 miles of driving. Best spend the money on a Cat Back exhaust. If nothing else, it should at least improve the exhaust sound.

 

Sorry. Not unexpected based on reported, numerous historical performance accounts of the product when used on Gen1/Gen2s.