Upgrade your Insight CTS3 to full flash tuning device for 2020-2023 L5P Duramax. This upgrade includes the required Locksmith Unlock tool and harnesses to unlock your factory ECM and TCM in order to accept performance tuning into the truck along with Edge performance proven calibrations. This upgrade also includes a Custom Tuning License to allow you to download third party Custom Tunes from Edge approved calibration shops. Once you receive our Unlock tools, you can unlock your ECM/TCM, read your factory files and email them to your preferred third party tuner to be modified and returned to you for flashing into the truck. Once your order is completed and processed, our system will configure your devices tuning upgrade and deliver it to our Update Agent servers. You'll be notified via email when that upgrade is available for you to download into your device (5-10 minutes after purchase is completed). Our shipping team will process the rest of the order and the required unlock tool will be shipped to you at the speed you select at checkout. Tuning will not be able to be downloaded into your trucks ECM until you have received the unlock tool and can perform those functions. Does NOT support the removal of emissions equipment *User accepts all liability when loading/flashing third party calibrations into their vehicle. Edge Products emissions compliance status only applies when pre-loaded Edge calibrations are used by the device/vehicle. Upgrade your Insight CTS3 to full flash tuning device for 2020-2023 L5P Duramax. This upgrade includes the required Locksmith Unlock tool and harnesses to unlock your factory ECM and TCM in order to accept performance tuning into the truck along with Edge performance proven calibrations. This upgrade also includes a Custom Tuning License to allow you to download third party Custom Tunes from Edge approved calibration shops. Once you receive our Unlock tools, you can unlock your ECM/TCM, read your factory files and email them to your preferred third party tuner to be modified and returned to you for flashing into the truck. Once your order is completed and processed, our system will configure your devices tuning upgrade and deliver it to our Update Agent servers. You'll be notified via email when that upgrade is available for you to download into your device (5-10 minutes after purchase is completed). Our shipping team will process the rest of the order and the required unlock tool will be shipped to you at the speed you select at checkout. Tuning will not be able to be downloaded into your trucks ECM until you have received the unlock tool and can perform those functions. Does NOT support the removal of emissions equipment *User accepts all liability when loading/flashing third party calibrations into their vehicle. Edge Products emissions compliance status only applies when pre-loaded Edge calibrations are used by the device/vehicle.