Heavy Tow Tune incl EFI Live SPADE

Features:

• Safe for towing up to 8,000 lbs GVW
• Includes EFI Live SPADE AutoCal v3 device
• Boosts power without raising EGTs
• 50 State Legal with emissions equipment intact
• +32 RWHP and +58 ft-lbs torque gain
• SMART EGT Control manages exhaust temps
• Improved low-speed trailer maneuvering
• Revised pedal sensitivity for better response
• Factory turbo brake retains full function
• No wiring hacks or sensor tampering required
• Custom tuning includes 100+ calibration changes
• Ideal for heavy-duty and high-mileage towing

Built For The Long Haul With Confidence

If you rely on your 2011 Duramax to handle serious towing jobs day in and day out, this Heavy Tow Tune with EFI Live SPADE is a game-changer. Designed for the truck owner who’s pulling equipment, trailers, or heavy loads across long distances, this tune adds the muscle and control your truck needs without putting added stress on your engine. You’ll get noticeable gains of +32 RWHP and +58 ft-lbs of torque, giving you the boost to get moving quicker and hold gears longer while towing. Thanks to revised pedal sensitivity and smarter power delivery, you can confidently back up trailers or maneuver at low speeds without the usual lurching. The factory turbo brake remains fully functional, so you keep all the factory safety tools that help on steep grades and tight spots. If you’re hauling heavy through hills, long grades, or city stops, this tune keeps your truck cool and in control. It’s a reliable solution that lets you tow heavy and drive easy, no matter what the road throws your way.

Precision Tuning That Works When Your Truck Does

This Heavy Tow Tune is built with over 100 calibration changes from stock, each one carefully engineered for safe, efficient towing. It includes EFI Live’s AutoCal v3 hardware, giving you full OBD tuning access and diagnostic control in a simple handheld unit. The tune uses SMART EGT Control to automatically manage exhaust temperatures, so even under load, your truck stays cool. Air-fuel ratio limits are built into the tune to minimize soot and protect emissions equipment, all while delivering added power right where it matters. With +32 rear wheel horsepower and +58 ft-lbs of torque, it helps your truck lug through hills or city traffic without constant shifting. The revised pedal response gives you smoother control whether you’re climbing grades or maneuvering trailers. It’s designed to work seamlessly with your factory turbo braking and is ideal for trucks with larger tires or aftermarket parts, especially when paired with recommended TCM tuning.

Fitment: 2011 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Built for towing heavy loads and long trips.
• Emissions equipment stays intact and legal.
• SPADE AutoCal v3 hardware is included.
• SMART EGT Control manages exhaust temps.
• Not ideal for light towing or max fuel economy.
• Perfect for trucks towing 10,000+ miles yearly.
• Great for rigs with added weight or equipment.
• Improved pedal feel helps with slow maneuvers.
• TCM tuning is strongly recommended for results.
• Best for trucks with tire or turbo upgrades.
• Also available in the optional 5-Tune Pack.
• Phone support is available if help is needed.