The Edge Evolution CTS4 is the ultimate all-in-one performance upgrade for 2019–2022 Chevy Silverado 1500 and GMC Sierra 1500 trucks equipped with the 5.3L or 6.2L gas engine. (Does not support 2022.5+ GM Refresh applications.) Combining powerful flash tuning with Edge's next-generation digital gauge monitor, the CTS4 delivers increased horsepower and torque, sharper throttle response, optimized transmission shift strategies, and improved overall drivability.* Every kit includes the Edge Locksmith ECM unlock tool, allowing you to unlock the factory ECM and access Edge's pre-loaded, emissions-friendly performance calibrations. Choose 87 Octane tuning for daily driving and economy or step up to 91 Octane tuning for extreme performance and towing. Adjustable features include tire size recalibration, speed limiter adjustments, and the ability to remember supported Tow/Haul and drive modes. The CTS4 can also disable Active Fuel Management (AFM) and Dynamic Fuel Management (DFM) on supported applications, keeping your V8 running on all eight cylinders.* The Evolution CTS4 also features 8-speed and 10-speed transmission tuning on supported applications, optimizing shift points, shift feel, and power delivery for better acceleration, towing performance, and everyday drivability—all without bench flashing.* Monitor supported engine, drivetrain, temperature, pressure, and other vehicle parameters through customizable digital gauges, set alerts and warnings, log vehicle data, and read and clear diagnostic trouble codes. Compatible EAS accessories and camera options can further expand your monitoring capabilities. Backed by more than 20 years of Edge Products tuning expertise, the Evolution CTS4 for 2019–2022 Non-Refresh Silverado and Sierra 1500 5.3L and 6.2L trucks combines performance tuning, transmission optimization, diagnostics, and advanced digital monitoring into one powerful package. More power. Better response. Smarter monitoring. Take Control with Evolution CTS4. *A PC and Edge's downloadable Update Agent software are required to complete the ECM unlock and tuning process. **Device can unlock and tune only one vehicle. Once the ECM is unlocked and flashed, the vehicle can be returned to the factory calibration, but the ECM unlock process cannot be reversed. Once VIN lock and ECM unlock have been completed, the device is non-returnable.
