Im about to buy kyb agx adjustable shocks and ground control adjustable coilovers for my 95 200sx....has anyone done this yet and do they bolt right up or do i have to modify anything?

There's lots of info on the Forum here. Do yourself a favor and try the SEARCH function.

Here's a great writeup by Mike Kojima which will should help immensely.

http://www.nissanperformancemag.com/september01/suspension.shtml

Chris