Chaos Custom Tuning EFI Live Tune Files (2001-2010 6.6L Duramax)

The Chaos EFI Live Duramax Tune Files are built for 2001–2010 6.6L Duramax owners who want cleaner throttle response, stronger power delivery, and dependable drivability across the LB7, LLY, LBZ, and LMM platforms. These custom calibrations are created to give early-model Duramax trucks smooth, predictable performance without sacrificing reliability.

Chaos Custom Tuning builds files that work for stock trucks and lightly upgraded setups. Flashing is done through EFI Live, and there is no need to send in your ECM—simply load your file with your EFI Live hardware and VIN license.

Tune Levels for Chaos EFI Live Duramax Tune Files

• Level 1: 20 HP
• Level 2: 50 HP
• Level 3: 120 HP
• Level 4: 175 HP
• Level 5: 240 HP
• SOTF (Pickup Only)

What’s Included

• Custom EFI Live ECM tune files

What You Need

• EFI Live tuning device
• 1 EFI Live VIN License

Compatibility

• 2001–2010 Duramax 6.6L:

• LB7
• LLY
• LBZ
• LMM

Why Choose Chaos Custom Tuning?

• Proven power increases across all five levels
• Smooth fueling for better drivability
• Strong throttle control and clean response
• Stable, reliable operation on early-model Duramax engines
• Backed by one of the largest tech support teams in the industry