One of the finest ways to increase power and drivability out of your H2. Our Programmer is guaranteed to be the finest or your money back. With our programmer you are given the ability to fully custom tailor your H2 to your driving needs. Adjusts from stock to performance setting for an additional 27hp and 34 ft/lbs of torque, speed limiter, rev limiter for a broader power band, speedometer and odometer for gear and/or tire diameter changes, shift points, and increase shift pressure for quicker, firmer, and more precise shifts. Also features the ability to re-tune vehicles after factory re-flash of PCM by storing a copy of your stock setting in the programmer for future use. Multi-vehicle diagnostic tool with live data monitoring and fault code scan/erase capabilities. This gives you the ability to read and trouble shoot any problems that your H2 may be having which could otherwise leave you stranded. You will also be able to use the same Diagnostic Trouble Code Reader to diagnose most late model Chevy, GM and Cadillac vehicles. Installs in minutes with no computer skills. Won't void your H2 warranty. Comes with limited lifetime warranty.