I had transgo jr put in last week. Had edge set on level 3 yesterday which is said to be 80 more horses. I tromped it twice coming home and it went into limp mode. Threw out some tranny codes. I had the codes cleared and set edge back to level 2 and its been operating normal all day today. I do have 95000 miles on truck so maybe the tranny is a little worn and couldnt handle that much power.
IMO its worth getting exhaust and tuner that will delete dpf. Might just have to stay away from lots of added horses. Very damn hard to do when adding 150 horses is only touch of a button.