ok, you're lucky I just happened to be making 2 Integra Type-R kits right now
1st of all, you want to shorten the struts/springs by cutting out the area shown in "red" and glue the now in 2 pieces struts/springs component back together so you have a shorter strut/spring.. you do that for all 4 corners..
now that you have shorter strut/springs, your control arms will no longer fit on them right, you'll have a gap.. so what you want to do is lower the rear suspension linkages also by cutting out the areas again shown in "red" as show in these 2 photos
make sure everything is cut to the same length, so you don't have unequal lowering of the car on all 4 corners, make sure everything fit together right and straight before glueing them together
as for the front, the linkages are harder to cut due to their shape and stuff, so I took the approach of cutting the bottom of the car .. "red" areas are to be cut away,
hope this helps..