I also have a 2016 ECO diesel after the FCA emissions update my truck ran poorly not close to original. Like you I live in Calif. our options are very limited Sofa King is the only tune available. I did the engine and transmission tune, I'm very happy with Sofa King Tuned, its far better than the FCA updated tune but wouldn't take much to outdo that one! Its better than what came with my truck, I really enjoy driving my truck again. The way Sofa King does its tune, when it comes time to get the smog check you simply install the FCA updated tune get checked and reinstall the Sofa King tune and your good for another 2 years. Hope this helps regards Steve.Had my 2016 EcoDiesel updated a couple weeks back. Performance so bad that I took it back to the dealership within a day and told them to fix it or at least remove the flash update. They stated that once updated, they could not undo it. Having same "life-safety" issues of significant turbo-lag, poor performance and hesitant shifts as other posters in this forum! I really like ("liked") this truck and was so pleased with its performance after I ordered it directly from the factory - just the way I wanted it. Previously had a Ford F150 which I kept to 300k miles . . . it was a great truck and owed me no apologies (but hated the fuel mileage). The EcoDiesel Ram was the perfect solution . . . great torque and fuel economy!
Now after two weeks at the dealership repair shop, they've replaced my complete fuel system (stated the pump was "shredding" metal into the system . . . so replace the tank, pump, piping and filter). Picked it up this afternoon and got a half mile down the road and turned around and brought it back to the dealership. They stated it now performs just like the 2017 EcoDiesel (which did not fall under the recall mandate) . . . so I asked to drive one. Sure enough, the 2017 EcoDiesel was just as sluggish and poor performing as my "updated" 2016! To say I'm "unhappy" would be an understatement! It is truly a "life-safety" hazard now with it's pathetic performance!
Been reading this forum and similar experiences with the recall impact. Very curious about the GDE and SofaKing solutions? I live in northern California, but have a daughter in Reno. I gather that the GDE would be the better solution if I can get it (i.e. shipped to Nevada)? Or is the SofaKing solution just as good and I should have it shipped directly to my place in California? Do both solutions address both the acceleration hesitation AND poor transmission shifts?
Thanks in advance for any input (and my apologies for long-winded post)!