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

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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 Show more