Up for sale is a Hypertech Power Programmer III, model 30022. This engine tuning device is designed for 2004-2006 GM Trucks and Hummer models with 4.3L, 4.8L, 5.3L, 6.0L, 8.1L engines. It's in good used condition and comes with its original box. Improve your vehicle's horsepower, torque, and overall drivability with this easy-to-use tuning computer. $150 obo cash only