Description

Fits

Year	Make	Model	Engine
2020 - 2023	GMC/Chevrolet	HD	6.6L Duramax

The Edge CTS3 is an all - in - one ECM/TCM unlocking and tuning device for your Duramax. It comes with a well - known touch screen monitor and a revolutionary locksmith device with an unlock cable. This amazing device saves you both time and money. It also gives your Duramax better throttle response, quicker turbo spool - up, improved fuel economy, and more user control.

Part Number: 85400 - 261

Features

• Unlock ECM/TCM right in your vehicle
• Boost up to 125hp/275tq at peak RPMs
• Monitor important data like soot, miles since last regen, EGTs, boost, and fluid temperatures
• Includes 10 - speed transmission tuning with four calibration options (Economy, Tow, Performance, Extreme)
• Throttle Boost feature lets you adjust pedal sensitivity
• Get 1.3 seconds faster in the 1/4 - mile and gain 8mph!
• Remembers last button settings for drive mode, exhaust brake, tow/haul, and grade braking
• Calibrate speedometer for tire sizes 26 - 38'
• Command manual DPF regeneration cycle
• Relearn Allison Transmission
• Adjust speed and rev limiters
• Read and clear DTCs
• Adjust Idle Up feature from 600 - 1800rpms
• Great for daily driving and towing performance
• Tuning has passed in - house emissions testing and CARB EO submissions are in process
• Calibrations offer clean, efficient DPF - friendly performance

Tuning

• Economy (50hp/100tq)
• Towing (75hp/160tq)
• Performance (90hp/180tq)
• Extreme (125hp/275tq) *Peak RPM Gains

Notes

• You'll need a PC and the downloadable Update Agent software to complete the tuning process
• The device can unlock and tune only one vehicle
• Once the ECM is unlocked and flashed, you can return the flash to factory settings, but the unlock process can't be reversed
• If VIN lock and ECM Unlock are done, the device is non - returnable

Using the Edge CTS3 with your Duramax is easy. First, make sure you have a PC and download the Update Agent software. Connect the device to your vehicle, and it will start the unlocking and tuning process. You can choose from four different tuning options based on your driving needs - Economy for better fuel efficiency, Tow for towing heavy loads, Performance for an overall power boost, and Extreme for maximum power at peak RPMs. When using the device, remember that it can only be used on one vehicle. After unlocking and flashing the ECM, you can return the flash to factory settings, but you can't reverse the unlock process. To keep the device in good condition, keep it clean and avoid exposing it to extreme temperatures. If you want to calibrate the speedometer for different tire sizes, you can easily do so within the device's settings. Also, use the Throttle Boost feature to adjust the pedal sensitivity according to your preference. And don't forget to regularly check and clear DTCs to ensure your vehicle runs smoothly.