Heavy Tow Tune Only for EFI Live Spade

Features:

• Custom Heavy Tow Tune calibration
• Fits 2010-2012 RAM 6.7L Cummins
• Designed for towing up to GVW
• Up to +20 RWHP increase
• Up to +36 lb-ft torque
• Smart EGT control protects engine
• Emissions equipment remains fully intact
• Retains factory exhaust brake function
• Improved low speed trailer control
• Over 100 calibration changes from stock
• Requires EFI Live AutoCal V3
• Reduced soot versus box tuners

Built For The Long Haul When Your Trailer Never Takes A Day Off

If your 2010-2012 RAM 2500 or 3500 spends more time hooked to a trailer than cruising empty, this Heavy Tow Tune was made for your kind of workload. It is designed for trucks that regularly tow up to gross vehicle weight, whether that means construction equipment, a large boat, or a service body loaded with tools. You gain a modest but meaningful bump of 20 rear wheel horsepower and 36 lb-ft of torque, which helps get heavy loads moving without stressing the truck. The difference shows up when pulling away from a stop or climbing a long grade, where the added torque lets you shift up and settle into a steady pull. Additionally, Smart EGT control actively manages exhaust gas temperatures, so you are increasing usable power without driving heat through the roof. Low speed trailer maneuvering is smoother, making it easier to back into tight job sites or crowded campgrounds. All of this comes while keeping your factory emissions equipment and exhaust brake fully functional.

Purpose Built Calibration Strategy For Serious Towing Demands

This Heavy Tow Tune is not about peak numbers, it is about controlled and sustainable performance under load. More than 100 calibration changes from stock are implemented to refine fueling, timing, and torque management specifically for high load conditions. Air fuel ratio limits are built into the tuning to help reduce soot production and maintain clean combustion during extended pulls. Furthermore, throttle sensitivity is revised to eliminate abrupt pedal response, giving you better control when easing into the throttle with a heavy trailer attached. The tune requires the EFI Live AutoCal V3 hardware, which flashes through the OBD port without cutting wires or modifying sensors. For trucks equipped with the 68RFE transmission, recommended transmission tuning improves line pressure, clutch holding capacity, and shift strategy to handle the added torque more effectively. The result is a balanced towing calibration that supports the durability of the 6.7L Cummins while delivering the confidence you need on hills, highways, and job sites.

Fitment: 2010, 2011, 2012 RAM 2500/3500 6.7L Cummins

Notes:

• Fits 2010-2012 RAM 2500/3500 6.7L Cummins only.
• Designed for towing up to gross vehicle weight.
• Light Tow Tune better for lighter loads.
• Emissions equipment must remain installed.
• EFI Live AutoCal V3 hardware required.
• Additional EFI Live license needed per truck.
• Maintain proper battery voltage during flashing.
• 68RFE transmission tuning strongly recommended.
• No transmission tuning available for Aisin.
• Manual G56 trucks receive tailored engine files.
• Ideal for frequent or commercial towing use.
• Switch On The Fly option available.