Heavy Tow Tune incl EFI Live SPADE

Features:

• Designed for heavy towing applications
• Includes EFI Live SPADE tuner device
• 50 State Legal emissions-compliant tune
• Gain +32 RWHP and +58 ft-lbs torque
• Safe for towing up to 8,000 lbs GVW
• Built-in SMART EGT control for safety
• Maintains factory turbo brake function
• Revised pedal feel for better control
• Helps eliminate trailer lurch in reverse
• Reduces soot compared to generic tuners
• Includes EFiLive license in the package
• Over 100 custom calibration changes

Confidence Comes Standard When You Tow Heavy

If you're hauling big loads often, this Heavy Tow Tune is built for your lifestyle. Whether you're pulling a large boat, a loaded-down trailer, or a work rig stacked with gear, this tune delivers the extra grunt you need without pushing your engine too far. It offers +32 rear-wheel horsepower and +58 ft-lbs of torque to help get your trailer moving quicker and stay in the gear you want when climbing grades. Pedal sensitivity is dialed in to make maneuvering at low speeds smooth, especially when backing up a trailer. You also keep full use of your factory turbo brake, making steep descents safer and more controlled. Best of all, it’s emissions intact and 50-state legal, so you don’t have to worry about inspections or compliance. This tune is perfect for guys who tow through hills, mountains, and long hauls year-round and want better power delivery without risking engine temps or reliability. It’s reliable, tested, and fully backed by a team that knows trucks inside and out.

Built To Handle Load Demands Without Compromise

Technically speaking, the Heavy Tow Tune is engineered for consistent performance and safety under high-load conditions. It maintains your emissions equipment and uses a custom calibration with over 100 changes to the stock tune. Designed specifically for towing up to 8,000 lbs GVW, this tune increases usable power while keeping EGTs in check with built-in SMART EGT control. Air-fuel ratio limits are calibrated to reduce soot output, helping your DPF last longer. With improved torque and quicker throttle response, the truck feels more confident without introducing harsh shifts or unsafe engine strain. It's an ideal setup for drivers who rely on their truck for towing on a daily or weekly basis and need predictable, efficient performance. The included EFI Live SPADE device makes tuning and updates simple, and transmission tuning is strongly recommended to fully optimize shift points, torque converter behavior, and drivability. Everything works together to make your LML more capable, responsive, and better suited to demanding towing scenarios.

Fitment: 2013 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Designed for towing up to 8,000 lbs GVW.
• Not ideal for light towing or empty daily driving.
• EFI Live SPADE device is required and included.
• Emission systems remain intact and unaltered.
• 50-state legal with CARB EO number D-845.
• Recommended for trucks towing regularly or under heavy load.
• Not intended for high-performance or racing use.
• Best used with TCM tuning for optimal shift quality.
• Includes over 100 calibration changes from stock.
• Not compatible with all aftermarket performance upgrades.
• Ideal for over-the-road haulers and work trucks.
• Better fuel economy may be possible with Light Tow tune if towing under 8,000 lbs.