LML Duramax EFI Live Custom Tuning — Single File Only

Once ordered, these are non refundable, nor returnable. After order completion you will be emailed asking for specific vehicle information. Once vehicle specific information has been gathered your custom files will be put into production. generally 1-3 Day lead time (this can vary depending on work load) 

The tunes you will receive for your Duramax will vary based off the modifications to your truck

General Power Levels for most stock trucks 

(only valid if your stock turbo and fuel)

• Stock (Optimized)
• 30HP (Heavy Tow)
• 80HP (Light Tow -12k Lbs and under)
• 120HP
• 150HP (Lift Pump Required)
• Max Effort  (Lift Pump Required)