1. the kyb agx's are not struts and shocks....just struts
2. depends on if you have sport or race neuspeed springs, race are about 2.25-2.5 drop and sport are somewhere around 1.8 i do believe so if you have the race you'd be pushing it
3. i just installed some kyb agx's on my car it's super easy.....undoing 2-5 bolts on the front set and like 2-3 bolts on the rear set