Light Tow Tune Only for EFI Live Spade

Features:

• +55 RWHP and +99 ft-lbs torque gain
• Designed for towing under 8,000 lbs
• Improved throttle response and pedal feel
• Emissions intact and 49-state legal
• Factory turbo brake remains fully functional
• SMART EGT Control manages exhaust temps
• Smooth power curve for better drivability
• More usable power in daily driving
• Revised calibration improves low-speed maneuvering
• No wiring or sensor modifications required
• Custom tune includes over 100 calibration changes
• Built by DuramaxTuner.com with phone support

The Perfect Upgrade For Workdays And Weekend Towing

If you rely on your 2013 Duramax for both daily driving and light towing, this Light Tow Tune strikes the sweet spot between power and peace of mind. It adds just the right amount of torque to make trailers feel easier to manage without turning the truck into something temperamental. You’ll notice smoother throttle response pulling away from stops, especially when the bed is loaded or a trailer is hooked up. Hills feel less demanding, merging into traffic takes less planning, and backing up with a trailer becomes far more controlled. The truck still behaves like a factory setup, just stronger and more confident in real world situations. What’s more, emissions equipment stays fully intact and the tune remains 49 state legal, so reliability and compliance are never a concern. It is an ideal choice for contractors, weekend haulers, or anyone who wants their truck to work better without working harder.

Smart Calibration Built For Light Duty Towing Control

This Light Tow Tune is engineered specifically for the 2013 GM Silverado and Sierra 2500HD and 3500HD equipped with the 6.6L Duramax LML. It delivers gains of up to +55 RWHP and +99 ft-lbs of torque while maintaining safe operating limits for engine and emissions components. More than 100 calibration changes are applied to improve fueling, timing, and throttle mapping for smoother and more usable power. SMART EGT Control is integrated into the tune to automatically manage exhaust temperatures during sustained towing or long grades. Air fuel ratio limits help reduce soot production compared to box style programmers, keeping the engine cleaner over time. The tune retains full factory turbo brake functionality and improves pedal sensitivity for better low speed trailer maneuvering. Installation requires the EFI Live SPADE AutoCal V3 and is completed through the OBD port with no wiring or sensor modifications needed.

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

Notes:

• Compatible with 2013 GM 2500HD/3500HD 6.6L Duramax LML
• This is a tune-only product and does not include hardware
• EFI Live SPADE (AutoCal V3) device is required for installation
• EFiLive license is required if reusing an existing device
• Requires Serial Number and Auth Code from your existing SPADE device
• This tune is 49-state legal and emissions intact
• Designed specifically for towing less than 8,000 lbs
• Not intended for heavy towing or high sustained loads
• Ideal for daily drivers, contractors, and seasonal haulers
• No wiring, sensor modifications, or hard parts are needed
• Recommended to pair with TCM tuning for optimal shift performance
• DuramaxTuner.com offers full phone support for setup and questions