PCM Reprogram - July 19, 2014 Even though the H3's I5 produces a bit more power than the Montero's V6, it's sluggish at best with low RPM shifts with flat torque curves. I researched a number of mechanical mods to improve this (within my budget) and found that the most common - air intake upgrades, headers - yielded little change in performance and better fuel efficiency. From various H3 user forums I heard about PCM of North Carolina and researched their service; they flash and reprogram the factory PCM (power-train control module) promising better throttle response and fuel efficiency, better shift points making better use of the torque curve, and more horsepower. Sounds too good to be true, but having lived in North Carolina, it's been my experience to have never been disappointed with anything that comes from that state. So I made the order. I opted for their loaner program where they send a unit to replace the factory PCM while it's sent