6.6 L Duramax LMM

Take control of your 6.6L Duramax LBZ’s performance with diesel tuners and tuning files made for truck owners who work on their own trucks. Increase horsepower add heavy-duty torque and improve fuel efficiency whether you’re towing, hauling or hitting the road daily.

Our plug-and-play tuners and custom files are built for straightforward installation, so you can skip the mechanic and get your LBZ running stronger. Designed for hardworking rigs and hands-on owners, these tools deliver the power and reliability your diesel needs to tackle tough jobs.