I'm an all stock 96, 7.3 CC,LB, F350 4X4. I installed the DIY tymar.I did experience a slight HP gain too. I don't know what it was, but I'm thinking maybe 5, to 7, or 8 HP. Regardless, I know the engine is breathing better[more HP], and I have lowered my EGT's.[No gauges yet! I'm going by what...