Collection: Duramax Tuning

Find the right Duramax tuner for every engine and generation — from the LB7 (2001–2004) through the latest 3.0L LZO and 6.6L L5P (2017–2025). Our collection includes hand-held tuners, OBD2 tune packages, ECM and TCM unlock services, and complete delete tune solutions for EGR and DPF systems.

Whether you're running EFI Live AutoCal V3, an EZ LYNK Auto Agent 3, or the Mini Maxx V2, you'll find matching tune files and packages for your Silverado, Sierra, Colorado, Canyon, or Ram. Shop by engine code below, or browse the full collection for power tuning credits, SOTF packs, and E46 upgrade kits.