Hypertech 30030 Power Programmer III Automotive Tuning Computer Optimizes air/fuel ratios and timing for maximum performance, and allows you to make additional performance-related adjustments Easy to use, so you don't need to be an expert to reprogram your vehicle's onboard computer with the Power Tuning program precisely tailored to your vehicle Stores the OEM tuning program to quickly and easily restore your vehicle's onboard computer to its stock settings when desired Legal for sale or use throughout the U.S., including California pollution-controlled motor vehicles (according to CARB Executive Orders) Backed by the manufacturer with a factory direct limited lifetime warranty