Just sharing some info and concern. I have a Nitrous Enterprise lift on my 03 Sport Edition. (which come with XREAS suspension). I have had no worries/problems with the lift, 4" in front, 3" in rear, with Shock-Relocators which are needed for the XREAS system. I'm bummed on news I'm hearing about Nitrous Enterprises and their quality (both in 4Runner and Nissan Tital threads.) So it's got me thinking of changing to a product designed by a company with more history. I can say i've put my Runner through the paces with the kit, and no problems what-so-ever, but I would definitely recommend a product from a more established company if available. My biggest note, DO NOT REMOVE/DISCONNECT XREAS SYSTEM. From what i've heard, if you do disconnect for the install, you're gonna have mad problems. You have to use an old school, coil-spring compressor and keep the suspension system in tact. Insure your installers know this.