Everything will be the same for all 1995 and newer models. As far as the jetting goes, you will not NEED to change it, but Typically the KDX's come really rich from the factory, so you will probably WANT to lean it up a bit to get a little more out of the motor. There is a ton of information on here regarding the jetting of the KDX's. Try a search for it and you can probably get it really close and save a lot of time. Also the KDX only site lists pretty detailed jetting starting points. Even breaks it down as far as what mods you have performed.
Happy riding.
Perk