You shouldn't have to do anything with your computer for it. I'm assuming its all electronic as the prior generation of Eclipses were. If that be the case, it should be a simple unplug, swap, and plug in. As long as you don't tear the gauge cluster apart it shouldn't need calibrated or anything. If any of the gauges are mechanical gauges though, it won't be so simple. They shouldn't be though in that new of a car...
Good luck.