2017–2023 L5P Duramax Plug-and-Play ECM Unlock + SOTF

 

With this package, simply remove your ECM and ship it to us. We handle the unlock, credits, and custom tuning—including Shift-On-The-Fly control through the cruise buttons. Once the ECM is returned, reinstall it, plug it in, and you’re ready to go. No additional setup required.