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Great fit for off-road
Built-In Performance Calculator
2017-2023 L5P E41 ECM Unlock (4 Credits)
✔ Custom-built tuning for real-world performance ✔ Maximized torque and horsepower for Duramax LML 6
375" Performance Replacement
AMDP 2003-2009 C4500/5500 Kodiak/TopKick 6.6L Duramax EFILive Custom Tuning VIN License:Add VIN License Great fit for off-roadUnlock the true potential of your 6. 6L Kodiak Duramax with AMDPs single power level custom EFILive tuning, engineered specifically for the 20032009 Chevrolet Kodiak and GMC TopKick C4500 C5500 medium duty trucks. Available Power Levels: +25 hp Smooth, reliable daily power increase with improved throttle response and fuel efficiency +50 hp Noticeable performance gains while maintaining excellent drivability and reliability +100 hp Aggressive power