Airbag kit for Hummer H2?

i picked up one of the Helix suspension Catalogs at WCN and in it theres a Airstrut kit for burbans/avalanches/H2s. how much travel will i get from this kit?

also what does the front consist of? a airstrut or a bag and cup setup?

Yeah it's an air shock. Should get 6" travel on this kit.