What year? '13 or 14? If so, it's likely the tuning. I had/have the same problem with tunes from GH, DP and H&S. 1-2, 2-3, 3-4 are all harsh. I had to have the tuner adjust to make it drivable. When I ran the minimax, I just built my own trans tune and ran their engine tunes. It has to...