Ok, so I finally got around to installing the throttle body from a 4.0 cherokee this weekend. I don't have pics up yet, but i will. Right off the bat, my jeep seemed to idle a little smoother and it seems to run better when it's cold. as far as performance, i have noticed better throttle response, especially in the low end of the rpm range. my first trial run on the road was up a hill that i normally have to drop to 3rd in, but i keep it in 4th all the way up. my highway acceleration is better and i can actually keep my speed going up hills!! for the $50 i spent on the TB, it was well worth the investment.