To the original topic (I don't know about the 6" kit, sorry):
he instructions are vague and generic, such as they are -- and sometimes there are NONE, depending on where you buy them.
You'd be best off finding everything you can on installing them. All the information you need is here on the board. Brake lines being slightly adjusted (or at least the hose/pipe junction needs to be moved, LCA grinding, caliper hitting the LCA, etc. are the main things that need to be addressed.