Features:
If you want your 2011 Duramax to adapt to everything from daily driving to serious towing, the 49-State Legal Five Tune Pack gives you complete control over how your truck performs. Whether you're cruising on the highway, hauling a heavy load, or just want to enjoy a more responsive throttle around town, this package has a tune built for it. With gains of up to 135 rear-wheel horsepower and 243 ft-lbs of torque, the Sport Tune brings serious power when you're ready to feel it. The Street, Light Tow, and Heavy Tow tunes give you smooth, usable power for real-world driving while managing temps and protecting your truck's systems. Even the Optimized Stock tune serves a purpose when you're troubleshooting or letting someone else drive your truck. All five tunes are emissions intact and 49-state legal, so you can enjoy the performance without legal headaches. It's a complete, flexible tuning solution for drivers who want their truck to be ready for anything.
This Five Tune Pack is a fully customized calibration set designed for 2011 GM 2500HD and 3500HD trucks equipped with the 6.6L Duramax LML. Each tune is built with over 100 individual changes from stock, providing refined throttle control, smoother shifting, and reliable power delivery across a wide range of driving situations. From the high-powered Sport Tune to the efficient and EGT-managed Heavy Tow Tune, each calibration is engineered to enhance performance while keeping your emissions equipment fully intact. Custom air-fuel ratio settings help reduce soot output, and SMART EGT control keeps exhaust temps in check during towing or heavy use. The Street and Light Tow tunes offer a well-balanced mix of drivability and responsiveness, while the Optimized Stock tune is perfect for diagnostics or when handing off the truck to someone unfamiliar with tuned power. This tuning package is designed to work with EFI Live SPADE AutoCal v3, allowing easy flashing, data logging, and diagnostics. For Duramax owners who need versatility without compromising reliability or emissions compliance, this pack delivers proven performance in every tune.
Fitment: 2011 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
Notes:
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| Property | Values |
|---|---|
| Year Ranges | 2011 |
| Make | GM/Chevrolet/GMC |
| Model | Silverado/Sierra |
| Series | 2500HD/3500HD |
| Engine | 6.6L Duramax LML |
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