The Edge Evolution CTS4 for 2020–2023 Chevy Silverado HD and GMC Sierra HD 6.6L L5P Duramax combines powerful diesel performance tuning, 10-speed transmission tuning, and next-generation digital monitoring in one advanced, easy-to-use device. Delivering gains of up to 125 horsepower and 275 lb-ft of torque at the tires, Evolution CTS4 provides stronger acceleration, improved throttle response, optimized shifting, and better overall drivability for daily driving, towing, and performance. The included Edge Locksmith tool provides an in-vehicle ECM and TCM unlock, giving you access to pre-loaded, emissions-friendly calibrations without removing the modules from the truck. Choose from four performance levels. Economy (+50 HP/+100 LB-FT), Towing (+75 HP/+160 LB-FT), Performance (+90 HP/+180 LB-FT), and Extreme (+125 HP/+275 LB-FT) to match your L5P Duramax to the way you drive. Adjustable Throttle Boost lets you fine-tune pedal sensitivity for even sharper response. Evolution CTS4 also includes 10-speed transmission calibrations designed to complement the engine tuning. Optimized shift strategies improve shift timing, shift feel, power delivery, and towing performance, helping you get more from the Allison 10-speed whether the truck is empty or working hard with a trailer behind it. The CTS4 L5P Duramax tuner and monitor keeps critical truck data within easy reach. Monitor supported parameters including DPF soot level, miles since last regeneration, EGT, boost, fluid temperatures, and other engine and drivetrain data through customizable digital gauges. Set custom alerts and warnings, log vehicle data, and read and clear supported diagnostic trouble codes directly from the CTS4. Beyond performance tuning and monitoring, CTS4 provides access to supported truck-specific features including 26–38-inch tire size calibration, speed and rev limiter adjustments, 600–1,800 RPM Idle Up, manual DPF regeneration, Allison Transmission Relearn, and the ability to remember supported drive mode, exhaust brake, Tow/Haul, and grade braking settings. Compatible EAS sensors and camera options can further expand your monitoring capabilities. Edge calibrations are developed to provide clean, efficient, DPF-friendly performance while retaining the truck's emissions equipment. Evolution CTS4 does not support the removal or disabling of emissions equipment. 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/TCM unlock have been completed, the device is non-returnable.
| 5 Volt Data Logging Inputs |
Yes |
| 50 State Legal |
No |
| AC Adapter |
No |
| Accepts Custom Tunes From CMR |
Yes |
| 621 |
ABS |
| Brand |
Edge |
| California Proposition 65 Required |
Yes |
| CARB (California) Compliant |
No |
| 2278 |
No |
| Category |
Tuners and Programmers |
| Color Display |
Yes |
| Color Touch Screen Display |
No |
| Custom Tuning |
No |
| Emission Code |
7 |
| 2541 |
Yes |
| Fuel Type |
Diesel |
| 3390 |
Performance |
| In Cab Monitoring |
Yes |
| 2543 |
Yes |
| part type |
Computer Chip Programmer |
| Performance Tunes |
Yes |
| Pods and Mounts Available |
Yes |
| Product Type |
In-Cabin Tuner |
| 2487 |
Yes |
| Speedometer |
Yes |
| Sub Category |
Engine Service |
| 5561 |
Yes |
| Video Capable |
Yes |
| Warning |
California Proposition 65 |
| Wi-Fi Updates |
Yes |
| Description_SHO |
Evolution CTS4 L5P |
| Description_INV |
Edge Evolution CTS4 for 20202023 GM L5P |
| Description_ASC |
It is strongly recommended that a battery charger be used during the ECM/TCM Unlock to ensure no voltage drop interrupts the process leaving an ECM in-operable. |
| Description_DES |
Evolution CTS4 2020-2023 GM L5P Duramax |
| Description_EXT |
The Evolution CTS4 for GM L5P Duramax delivers powerful tuning, a sleek touchscreen, and real-time engine monitoring. Boost towing power, throttle response, and efficiency with this premium all-in-one tuner and performance upgrade. |
| Description_MKT |
The Edge Evolution CTS4 for 2020–2023 Chevy Silverado HD and GMC Sierra HD 6.6L L5P Duramax combines powerful diesel performance tuning, 10-speed transmission tuning, and next-generation digital monitoring in one advanced, easy-to-use device. Delivering gains of up to 125 horsepower and 275 lb-ft of torque at the tires, Evolution CTS4 provides stronger acceleration, improved throttle response, optimized shifting, and better overall drivability for daily driving, towing, and performance. The included Edge Locksmith tool provides an in-vehicle ECM and TCM unlock, giving you access to pre-loaded, emissions-friendly calibrations without removing the modules from the truck. Choose from four performance levels. Economy (+50 HP/+100 LB-FT), Towing (+75 HP/+160 LB-FT), Performance (+90 HP/+180 LB-FT), and Extreme (+125 HP/+275 LB-FT) to match your L5P Duramax to the way you drive. Adjustable Throttle Boost lets you fine-tune pedal sensitivity for even sharper response. Evolution CTS4 also includes 10-speed transmission calibrations designed to complement the engine tuning. Optimized shift strategies improve shift timing, shift feel, power delivery, and towing performance, helping you get more from the Allison 10-speed whether the truck is empty or working hard with a trailer behind it. The CTS4 L5P Duramax tuner and monitor keeps critical truck data within easy reach. Monitor supported parameters including DPF soot level, miles since last regeneration, EGT, boost, fluid temperatures, and other engine and drivetrain data through customizable digital gauges. Set custom alerts and warnings, log vehicle data, and read and clear supported diagnostic trouble codes directly from the CTS4. Beyond performance tuning and monitoring, CTS4 provides access to supported truck-specific features including 26–38-inch tire size calibration, speed and rev limiter adjustments, 600–1,800 RPM Idle Up, manual DPF regeneration, Allison Transmission Relearn, and the ability to remember supported drive mode, exhaust brake, Tow/Haul, and grade braking settings. Compatible EAS sensors and camera options can further expand your monitoring capabilities. Edge calibrations are developed to provide clean, efficient, DPF-friendly performance while retaining the truck's emissions equipment. Evolution CTS4 does not support the removal or disabling of emissions equipment. 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/TCM unlock have been completed, the device is non-returnable. |
| Description_FAB |
In-Vehicle ECM/TCM Unlock — Unlock the factory ECM and TCM without removing them from the truck, providing straightforward access to Edge performance and transmission tuning. Four Pre-Loaded Performance Levels — Choose from Economy (+50 HP/+100 LB-FT), Towing (+75 HP/+160 LB-FT), Performance (+90 HP/+180 LB-FT), or Extreme (+125 HP/+275 LB-FT) to match your truck's performance to how you drive. 10-Speed Transmission Tuning Included — Optimize shift strategies, shift feel, power delivery, and drivability to complement each performance level. Adjustable Throttle Boost — Fine-tune accelerator pedal sensitivity for quicker throttle response and a more responsive feel behind the wheel. Improved Acceleration — Testing showed gains of up to 1.3 seconds and 8 MPH in the quarter-mile, demonstrating the added performance available from Evolution tuning.* Built for Daily Driving & Towing — Multiple tuning levels, optimized transmission strategies, and adjustable throttle response let you tailor your truck for commuting, towing, hauling, or maximum performance. Advanced Diesel 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 CTS4. Remember Factory Button Settings — Retain supported settings for drive mode, 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. Adjust Speed & Rev Limiters — Modify supported vehicle speed and engine RPM limiter settings to better match your truck's configuration and intended use. Adjustable Idle-Up — Adjust supported idle speed from 600–1,800 RPM for greater control when stationary. 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 deliver clean, efficient, DPF-friendly performance and have passed Edge's in-house emissions testing, with CARB EO submissions being processed. |
