`What’s Included
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Tuning Configuration
You are supplied with 5 different SINGLE Tune Files as at this time there is NO Shift-On-The-Fly (SOTF) tuning.
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MPVI4 Tuning Interface
Industry-leading hardware for advanced Duramax ECM tuning and diagnostics.
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Six (6) Universal Credits
Required for ECM unlocking and flashing.
- HPTuners ECM Unlock Service
- Coolant Upgrade Kit (MADE IN THE USA)
- Downpipe (MADE IN THE USA)
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Diagnostic Plug Kit (MADE IN THE USA)
- 2025 Diagnostic Plugs are not available at this time.
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Exhaust Choice
Performance Levels
Performance Diesel Worx custom calibrations include size selectable power levels designed for everything from stock-like operation to aggressive performance.
- Level 1: +30 HP
- Level 2: +60 HP
- Level 3: +80HP
- Level 4: +1050 HP
- Level 5: +125 HP
