Upgrade your Insight CTS3 to our 2019-2022 5.3L/6.2L 1500 GM Gas Evolution CTS3. This upgrade includes the tuning download to your CTS3 device and the required Locksmith Unlock tool and harnesses to unlock your factory ECM and TCM to accept tuning. This will include both engine and transmission tuning. 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 tune is available for you to download into your device. Our shipping team will process the rest of the order and the required unlock tool will be shipped to you at the rate you select at checkout. Tuning will not be able to be downloaded into your trucks PCM until you have received the unlock tool and can perform those functions.