Heavy Tow Tune Only for EFI Live Spade – Cummins 6.7L (2019-2021)

Heavy Tow Tune Only for EFI Live Spade – Cummins 6.7L (2019-2021)

Enhance your towing performance with the Heavy Tow Tune for EFI Live Spade, designed specifically for Cummins 6.7L (2019-2021) engines. This custom tune optimizes power and efficiency while maintaining emissions compliance, making it ideal for heavy towing applications.

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Why Choose the Heavy Tow Tune?

• Emissions Intact – No removal of emissions equipment required.
• Optimized for Heavy Towing – Designed for towing trailers and loads up to 8,000 lbs GVW.
• Safe Power Gains – Increased power without excessive EGT (Exhaust Gas Temperature).
• SMART EGT Control – Automatically manages EGT levels for safe operation.
• Air-Fuel Ratio Limits – Calibration includes built-in limits to reduce soot production.
• Retains Factory Turbo Brake – Ensures full functionality of the original turbo braking system.

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Performance & Specifications

• Horsepower & Torque Increases:
  • +20 RWHP, +36 ft-lbs
  • Manual Transmission: 370HP / 696 ft-lbs
  • 68RFE Transmission: 390HP / 836 ft-lbs
  • Aisin Transmission: 405HP / 900 ft-lbs
• Enhanced Driving Experience:
  • Faster acceleration when towing.
  • Improved gear holding under load.
  • Power to shift up and throttle back efficiently.

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Improved Pedal Sensitivity

• Smoother throttle response – Reduces sudden acceleration while maneuvering at low speeds.
• Better trailer control – Allows for precise input when reversing with a trailer.

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Fully Custom Tuning by DuramaxTuner.com

• 100+ calibration adjustments for optimal performance.
• No wiring modifications required – No need to hack into control units.
• Clean and efficient performance – More power with less soot compared to standard programmers.
• Dedicated customer support – Expert assistance available when needed.

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Ideal For:

• Over-the-road drivers or commercial towing.
• Owners hauling boats, construction equipment, or welding rigs.
• Tow trucks and heavy service vehicles.
• Those towing frequently across hills, mountains, and inclines.
• Drivers towing 10,000+ miles per year.

For lighter towing, consider our Light Tow Tune for improved fuel mileage.

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Required Equipment

SPADE / EFI Live AutoCal V3 Required

• Handheld OBD flashing tool for programming and diagnostics.
• Scan tool functionality – Record engine data for troubleshooting.
• Support for multiple trucks (with additional licenses).
• EFI Live License Included when purchasing hardware from Motorsports Arsenal.
• If using existing hardware, you’ll need an additional EFI Live License, along with your Serial Number and Auth Code.

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Recommended: 68RFE Transmission Tuning (Sold Separately)

For optimized performance and enhanced reliability, upgrading your 68RFE Transmission tuning is highly recommended.

• Improved Shift Points – Maximizes power and torque curve.
• Electronically Controlled Line Pressure – Increases clutch pack holding capacity.
• Torque Converter Lockup Adjustments – Eliminates unnecessary short shifting.

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Additional Transmission Notes

• Aisin Transmission: While transmission tuning isn’t available, our engine tuning is specifically calibrated for maximum performance with Aisin-equipped Cummins trucks.
• G56 Manual Transmission: Includes five custom tunes tailored for manual operation. Factory clutch durability depends on driver habits.

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– California Proposition 65 Warning

This product contains chemicals known to the State of California to cause cancer. For more information, visit www.P65warnings.ca.gov.

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Maximize your towing power and reliability with the Heavy Tow Tune for EFI Live Spade—your solution for safe, efficient, and powerful towing.