Heavy Tow Tune Only for EFI Live Spade

Features:

• Gain up to 20 RWHP and 36 ft-lbs torque
• Designed for towing 8,000 lbs up to GVW
• Emissions intact and fully emissions compliant
• Built for 2018 RAM 6.7L Cummins trucks
• Custom SMART EGT control keeps temps safe
• Improves low-speed trailer control and maneuvering
• Revised pedal sensitivity for better towing feel
• Keeps factory turbo brake fully functional
• Reduces soot with controlled air-fuel ratios
• Fully custom tuning with over 100 changes
• Requires EFI Live Spade AutoCal V3 to install
• Recommended to pair with 68RFE transmission tuning

Tackle Heavy Loads Without Breaking A Sweat

If you rely on your 2018 RAM 6.7L Cummins to move serious weight, the Heavy Tow Tune from DuramaxTuner gives you the power and control to get the job done safely and confidently. This custom tune is built specifically for trucks towing 8,000 pounds or more, offering a bump in performance that helps you get up to speed faster and hold gear longer under load. With improved throttle response and revised pedal sensitivity, your truck feels more responsive without being touchy, perfect for backing trailers or climbing steep grades. You’ll still retain factory turbo brake functionality, which comes in handy on downhill hauls, and the added torque helps eliminate that sluggish feeling when you're lugging a trailer. The tune is fully emissions intact and 50-state legal, so you can tow hard without worrying about compliance issues. It’s a great option for contractors, haulers, or anyone who expects their truck to pull its weight without drama. If you want a tune that balances pulling power with long-term reliability, this one is made for heavy-duty work.

Calibrated For Safe Power Under Full Towing Load

The Heavy Tow Tune for the 2018 RAM 2500 and 3500 6.7L Cummins is engineered to deliver controlled, reliable performance when towing near or at GVW. With a moderate increase of +20 RWHP and +36 ft-lbs of torque, this tune enhances drivability without pushing the limits of your factory hardware. It features SMART EGT control, which actively monitors and adjusts fueling to keep exhaust temperatures in check during extended pulls or high-load situations. Air-fuel ratio limits are built into the calibration to reduce soot output while maintaining efficient combustion. Revised throttle and pedal sensitivity improve low-speed maneuvering, making it easier to back up trailers or manage slow, tight turns. The tune retains factory turbo braking and integrates seamlessly with OEM systems, offering a smooth towing experience without the need for hard parts. When paired with recommended 68RFE transmission tuning, shift points and torque converter lockup strategies are optimized to stretch the torque curve and improve clutch longevity. This calibration is ideal for towing-focused drivers who demand reliability, safety, and control under full load.

Fitment: 2018 RAM 2500/3500 6.7L Cummins

Notes:

• Designed for 2018 RAM 2500/3500 6.7L Cummins
• Ideal for towing 8,000 lbs up to GVW
• Emissions intact and 50-state legal
• Delivers +20 RWHP and +36 ft-lbs torque
• Retains full factory turbo brake functionality
• Includes SMART EGT control to manage exhaust temps
• Air-fuel ratio limits help reduce soot production
• Improves throttle response and trailer control
• Requires EFI Live AutoCal V3 (Spade) to flash tune
• Not intended for use with light trailers or daily driving alone
• Recommended to pair with 68RFE transmission tuning for best results
• Includes over 100 calibration changes from stock