Collection: GM Duramax All-in-One Performance Kits (LML, LM2, L5P)

Upgrade your GM Duramax with complete diesel performance parts in one package. These all-in-one kits are built for LML 6.6L (2011–2016), LM2 3.0L (2020–2022), and L5P 6.6L (2017–2025).

Each kit includes OBD2 tuning, EGR and cooler upgrades, DPF and DEF solutions and exhaust components. Improve airflow, turbo efficiency and fuel delivery. Increase horsepower, torque, throttle response and long-term reliability for daily driving or heavy towing.