This kit created the catch phrase "go big or go home". Bulletproof Suspension Inc has designed this Hummer 12" Suspension System with the leading design and engineering that can only come from Bulletproof Suspension. Inc. Our Bulletproof Suspension H2 lift systems is one of if not the most popular H2 Kit available on the market today. Tried, proved and tested, this is the only 12" lift system for your H2. All components are made from A36 steel plate 1/4" thick or thicker and heavy wall D.O.M.(drawn over mandrel) seamless steel tubing. We use continuous seam welding with gusseted truss type construction. We call it "Bulletproof" because it is.