I've e-mailed eric a couple times yesterday about sending him an FICM for my truck and he said that an FICM with mild tuning will work best with my truck, but i wouldn't a notice a big difference. He said only thing i will notice is a little better throttle response and slightly better fuel milage. I thought these recalibrated FICM's were suppose to be getting about 30hp more out of a truck and the hp difference is really noticable?