I put a set on my evo today.
Fit the eyelets into the bottom arms. Remove the front bumper assembly. Loosen the 4 chassis screws holding the front dif down and the 2 top screws holding it in. Fit the swaybar through the eylets. Lift the front of the dif and slip the swaybar in front of the dif. Do up the screws and refit the bumper.
Same deal. Fit the eyelets, loosen the dif, fit the swaybar, lift the rear of the dif and slip the bar in. Tighten all the screws.
If you fit the bars upside down they will be loose and you'll need to repeat to turn them around