Arnott's new Coil Spring Conversion Kit was exclusively designed for the 2003-2007 Hummer H2 This suspension kit converts the vehicle's air springs to rugged, powder-coated, metal springs made from US steel The H2 springs are designed to maintain the factory-intended trim height of the vehicle This aftermarket kit also includes Arnott's new cutting-edge technology Electronic Bypass Module (EBM) to reliably eliminate dash panel fault codes This pioneering technology easily connects directly to your vehicle's electronics in a matter of minutes .