Heavy Tow Tune incl EFI Live Spade

Features:

• Includes EFI Live SPADE Autocal v3
• Safe for towing up to 8,000 lbs GVW
• Emissions equipment stays fully intact
• +20 RWHP and +36 ft-lbs torque gain
• Custom SMART EGT control manages temps
• Built-in air to fuel ratio safeguards
• Improves trailer launch and pulling power
• Refined throttle response under load
• Factory turbo brake remains functional
• Great for heavy haulers and work rigs
• Custom tuning with over 100 changes
• No splicing or sensor hacking required

This Tune Was Built For The Long Haul

If your truck earns its keep pulling heavy loads day in and day out, the Heavy Tow Tune from DuramaxTuner is built with your name on it. This custom tune helps you haul with confidence by safely boosting power without sacrificing engine health or emissions compliance. Whether you're towing a large equipment trailer, a fully loaded service rig, or a fifth wheel across state lines, you’ll notice better throttle response, smoother trailer control, and more usable torque where it counts. It’s tuned for drivers who spend serious time in the saddle and need dependable performance when it matters most. Backing into tight spots with a heavy trailer feels more manageable, and climbing grades no longer means watching your temps spike. Plus, it keeps your factory turbo brake fully functional, giving you peace of mind when braking under load. If you’re hauling more than just weekend toys, this tune helps you do it safer, smarter, and more efficiently.

Designed For Hardworking Trucks That Never Back Down

This Heavy Tow Tune includes more than just a bump in power. It features over 100 individual calibration changes tailored specifically to the 2018 6.7L Cummins for optimal towing support. With a modest +20 RWHP and +36 ft-lbs of torque, the tune focuses on efficiency and stability under load rather than pushing peak numbers. SMART EGT Control technology actively manages exhaust temps, while air-to-fuel ratio limits reduce soot production and maintain safe operation. The revised pedal sensitivity enhances low-speed maneuvering with a trailer, making it easier to back up or inch forward in tight areas. Unlike many generic programmers, this tune works seamlessly with your emissions equipment and keeps your turbo braking intact. Whether your truck runs a 68RFE, AISIN, or G56 transmission, DuramaxTuner ensures a calibrated tune that works with your hardware, not against it. It’s precision-built performance that protects your investment while keeping your load moving.

Fitment: 2018 RAM 2500/3500 6.7L Cummins

Notes:

• Best for towing over 8,000 lbs GVW.
• Light Tow Tune is better for lighter loads.
• SMART EGT Control manages temps automatically.
• Emissions equipment stays fully intact.
• Focuses on safe towing, not max horsepower.
• Great for daily towers and long hauls.
• Improves throttle response and low-speed control.
• Includes EFILive AutoCal V3 and license.
• 68RFE trucks should add transmission tuning.
• No transmission tuning for Aisin trucks yet.
• G56 tunes adjusted for manual operation.
• Friendly support team available if needed.