Heavy Tow Tune Only for EFI Live Spade – Cummins 6.7L (2018)

Heavy Tow Tune Only for EFI Live Spade – Cummins 6.7L (2018)

Why Choose the Heavy Tow Tune?

Optimize your towing experience with Motorsports Arsenal’s Heavy Tow Custom Tune, designed to enhance power delivery while maintaining emissions compliance. This tune ensures your Cummins 6.7L (2018) operates at peak efficiency without removing emissions equipment.

• Safe for Heavy Towing – Specifically calibrated for trucks towing up to 8,000 lbs GVW.
• SMART EGT Control – Automatically manages Exhaust Gas Temperatures (EGTs) for optimal performance.
• Air:Fuel Ratio Limits – Reduces soot production for cleaner operation.
• Factory Turbo Brake Retention – Maintains full functionality for safer downhill control.

Performance & Specifications

• Power Gains: +20 RWHP, +36 ft-lbs torque
• Manual Transmission Output: 370 HP, 696 ft-lbs torque
• 68RFE Transmission Output: 390 HP, 836 ft-lbs torque
• Aisin Transmission Output: 405 HP, 900 ft-lbs torque
• Improved Drivability:
  • Faster acceleration for getting trailers moving quickly.
  • Ability to maintain gears while towing.
  • More power for shifting up and reducing throttle strain.

Enhanced Pedal Sensitivity

• Refined throttle response for better low-speed trailer maneuvering.
• Prevents lurching while backing up with a trailer.

Custom Tuning by DuramaxTuner.com

• Over 100+ custom calibrations for optimized performance.
• No wiring modifications to fuel pump or turbo sensors.
• Better power and lower soot output than standard box programmers.
• Industry-leading customer service with real support professionals.

Ideal For:

• Long-haul drivers or those who tow professionally.
• Owners of large boats or heavy construction equipment.
• Heavy service trucks, tow trucks, and welding rigs.
• Trucks frequently towing 10,000+ miles per year.
• Those towing through steep inclines, hills, and mountainous terrains.

(For lighter towing with improved MPG, consider the Light Tow Tune. For ultimate versatility, choose all five custom tunes with Switch on the Fly.)

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Required & Recommended Options (Sold Separately)

SPADE / EFI Live Autocal v3 (Required)

• SPADE (Standalone Programming And Diagnostic Equipment), also known as EFILive AutoCal V3.
• Handheld OBD flashing tool for easy programming.
• Scan tool for diagnostics and logging engine data.
• Supports unlimited tune updates for one truck.
• Ability to flash multiple trucks (each requiring a separate tuning license).
• Up to 600 VIN slots available.
• Includes EFI Live License (Additional license required if transferring to another vehicle).

68RFE Transmission Tuning (Recommended)

• Adjusts factory calibration while maintaining reliability.
• Electronically controlled line pressure for increased clutch holding capacity.
• Revised shift points to stretch the torque curve of the 6.7L Cummins.
• Optimized torque converter lockup to eliminate short shifting and utilize full power.

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Transmission Compatibility Notes:

Aisin Transmission Owners:

• Typically found in 2013-2021 HD Cummins Cab & Chassis models.
• Engine tuning is optimized for Aisin-equipped trucks, even though transmission tuning is unavailable.
• Custom tuning enhances performance beyond standard one-size-fits-all solutions.

G56 Manual Transmission Owners:

• Available through 2018 model year.
• Factory clutch can handle moderate torque increases with responsible driving.
• Includes all five custom engine tunes in separate files.
• Custom tuning accounts for manual transmission-specific operation to provide optimal performance.

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Warning

This product contains chemicals known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.