Hypertech just released its tuner specifically made for 2015-2015 GM trucks and SUVS with 6.2L EcoTec3 and 4.3L Di EcoTec3 applications. Take horsepower and torque to new levels through better spark and fuel curves. See more details below.

Official Release:

Max Energy Tuning extracts every bit of energy possible out of every molecule of fuel giving you more miles at part-throttle and more power at wide-open throttle. In order to increase engine efficiency, horsepower and torque, our engineers first optimize the spark and fuel curves point by point over the entire rpm band. With the additional power and optimized transmission functions, drivers use less fuel to accelerate and maintain cruising speeds without the torque converter un-locking and transmission down-shifting to a lower gear. The results are maximum power and fuel mileage.

Features:

• Reactive throttle tuning for better drivability
• Adjust tire pressure monitoring system warning pressures for larger than stock tires
• Speedometer/odometer correction for non-stock tire sizes from 24″-54″ and rear gear rations from 2.56:1-5.13:1
• Adjust Active Fuel Management (AFM) minimum speed or disable
• Adjust automatic transmission shift points and firmness (4.3 only)
• Lower top-speed limiter or raise top-speed limiter to match speed rating of factory approved high-performance tires that are installed
• Adjust rev limiter +/-500 RPM in 100 RPM increments
• Read, display, and clear DTCs