The kit has pretty much everything even the brake lines. You may need the optional sway bar links, the exhaust mod, alignment. other than that it's a complete package. I like the kit. From my understanding, they redesigned the kit a few years back and put it out for less money. (the redesign was a good thing, not a corner cutting mission). I heard the old lifts were alrught but these newer kits are way better. I guess look at it from a sales standpoint. Let's say they make 30% profit on everykit in the past. they sold 100 a year. now they make 20% profit but sell 1000 a year. They make more in the long run.
In response to Nick's comment:
No IFS kit is good for hardcore. Sas is hardcore. The IFS lifts are good for playing and mudding. IFS has ZERO flex. I run the Cepek kit on the tahoe which for a long time was the most bad ass 6" lift for our trucks, it falls on it's face compared to an SAS truck. But comparing the cepek to the RCX, RCX is not bad quality.