Edge Evolution CTS4 - 2017-2019 GM 6.6L L5P Duramax - 85500-262

Part # 85500-262

The Edge Evolution CTS4 for 2017-2019 Chevy Silverado HD and GMC Sierra HD 6.6L L5P Duramax combines powerful diesel performance tuning, transmission tuning, and next-generation digital monitoring in one easy-to-use device. Designed for Duramax owners who want more from their daily driver or tow rig, Evolution CTS4 delivers substantial horsepower and torque gains with improved throttle response, stronger acceleration, optimized shifting, and better overall drivability.

The included Edge Locksmith tool unlocks the factory ECM and TCM, giving you access to pre-loaded, emissions-friendly calibrations designed for Towing, Economy, and Extreme performance. Choose the tune that matches how you use your L5P Duramax, whether you're commuting, pulling a heavy trailer, or looking for maximum available performance. Adjustable features also include supported options such as tire size recalibration, speed limiter adjustment, and remembering Tow/Haul and exhaust brake settings.

For 2017-2019 L5P trucks, Evolution CTS4 offers direct OBD-II flash tuning for the factory 6-speed transmission, eliminating the need for traditional bench flashing or additional third-party tuning hardware. Optimized transmission strategies improve shift timing, shift feel, power delivery, and drivability to help your Duramax perform better whether the truck is empty or working hard with a trailer behind it.

The CTS4 diesel tuner and monitor lets you keep an eye on supported engine, drivetrain, temperature, pressure, and other critical vehicle parameters through customizable digital gauges. Set custom alerts and warnings, record vehicle data with built-in data logging, and read and clear supported diagnostic trouble codes directly from the device.

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 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 unlock process cannot be reversed. Once VIN lock and ECM unlock have been completed, the device is non-returnable.

Features:

• Four Pre-Loaded Performance Levels — Choose from Economy (+75 HP/+150 LB-FT), Towing (+100 HP/+200 LB-FT), Performance (+125 HP/+250 LB-FT), or Extreme (+150 HP/+350 LB-FT) to match the truck's performance to how you drive.*
• In-Vehicle ECM Unlock — Unlock the factory ECM without removing it from the truck, simplifying the process of accessing Edge performance tuning.
• Direct OBD-II TCM Flashing — Industry-first direct OBD-II flashing for the factory transmission, with TCM calibration included, eliminating the need for traditional bench flashing or additional third-party hardware.
• Improved Acceleration — Testing showed gains of up to 1.3 seconds and 8 MPH in the quarter-mile, demonstrating the added performance available from CTS4 tuning.
• Adjustable Throttle Boost — Fine-tune accelerator pedal sensitivity for quicker throttle response and a more responsive feel behind the wheel.
• Built for Daily Driving & Towing — Multiple tuning levels, added horsepower and torque, improved throttle response, and optimized shifting let you tailor your L5P for commuting, towing, or maximum performance.
• Advanced Duramax Monitoring — Monitor important supported parameters including DPF soot level, miles since last regen, EGT, boost, fluid temperatures, and other critical engine and drivetrain data.
• Command Manual DPF Regeneration — Initiate a manual DPF regeneration cycle when supported, directly from the device.
• Remember Factory Button Settings — Retain supported settings for exhaust brake, Tow/Haul, and grade braking instead of resetting them each time the truck is started.
• Adjustable Tire Size & Speedometer Calibration — Correct the speedometer for supported tire sizes from 26 to 38 inches.
• Allison Transmission Relearn — Access the supported Allison transmission relearn procedure directly through the CTS4.
• Customizable Digital Gauges — Configure the CTS4 display around the engine, transmission, DPF, temperature, pressure, and other supported parameters that matter most to you.
• Custom Alerts & Data Logging — Set alerts and warnings for supported parameters and record vehicle data for performance monitoring, towing, and troubleshooting.
• Built-In Diagnostics — Read and clear supported diagnostic trouble codes directly from the CTS4.
• Expandable Monitoring — Add compatible EAS sensors, EGT probes, pressure and temperature sensors, and camera options as your truck and monitoring needs evolve.
• Emissions-Friendly Performance — Calibrations are developed to provide clean, efficient, DPF-friendly performance and have passed Edge's in-house emissions testing, with CARB EO submissions being processed.