Heavy Tow Tune Only for EFI Live Spade

Features:

• Heavy Tow Tune for 2013-2017 6.7L Cummins
• Specifically built for loads up to GVW
• Includes +20 RWHP and +36 ft-lbs torque
• Safe and emissions-compliant calibration
• Custom SMART EGT Control for towing temps
• Factory turbo brake retains full function
• Improved low-speed trailer maneuvering
• Revised pedal sensitivity for towing control
• Compatible with EFI Live SPADE hardware
• No wire hacking or sensor modification needed
• Optimized for smooth, reliable power delivery
• Supports automatic and manual transmission trucks

Get Your Truck Ready For The Long Haul

If you're using your 2013-2017 6.7L Cummins to pull serious weight, this Heavy Tow Tune from DuramaxTuner is exactly what you need. It's built to deliver safe, reliable power where it matters most, under load. With up to +20 rear wheel horsepower and +36 ft-lbs of torque, your truck will get moving quicker and stay in the gear you want while climbing grades or hauling heavy trailers. The factory turbo brake retains full functionality, and custom pedal sensitivity keeps your rig responsive during low-speed trailer maneuvering. This tune is designed for drivers who consistently tow up to their truck's GVW without sacrificing engine longevity or performance. You’ll notice smoother shifts, better throttle response, and the ability to shift up and throttle back with confidence. It’s perfect for work trucks, RV haulers, or anyone that depends on their truck to perform under pressure. All you have to do is load it up through EFI Live SPADE and let it do its job.

Engineered For Safe Power Under Heavy Loads

The Heavy Tow Tune includes more than 100 calibration changes over stock, all dialed in specifically for towing loads up to GVW. Air-fuel ratio limits and DuramaxTuner’s SMART EGT Control system work behind the scenes to manage heat and reduce soot production, helping your emissions components last longer. It's emissions intact, meaning you won't have to remove any factory equipment, and it's built to keep exhaust temps in check even on long grades. The tune pairs perfectly with 68RFE transmission tuning to correct shift points, increase clutch holding capacity, and optimize torque converter lockup. For those with the G56 manual transmission, the tuning is also adjusted to suit the driving behavior and gear control of a stick shift. Everything loads through the SPADE handheld using EFI Live's AutoCal V3, making updates and diagnostics straightforward. Whether you're pulling a camper, a trailer full of equipment, or a load of materials, this tune is built to help your truck tow smarter and more efficiently.

Fitment: 2013, 2014, 2015, 2016, 2017 RAM 2500/3500 6.7L Cummins

Notes:

• Designed specifically for 2013-2017 RAM 2500/3500 6.7L Cummins trucks.
• This is a single Heavy Tow tune only, not a full tune pack.
• Intended for towing loads between 8,000 lbs. and up to GVW.
• Requires EFI Live SPADE AutoCal V3 hardware for use.
• Includes one EFI Live license if purchased with SPADE hardware.
• If you already have SPADE from another vehicle, a new license is required.
• Transmission tuning for 68RFE is strongly recommended for best performance.
• No transmission tuning currently available for Aisin-equipped trucks.
• Manual (G56) transmission trucks receive separate tune files tailored for stick shifts.
• This tune keeps emissions equipment intact and functioning properly.
• Not ideal for performance or racing use, tuned specifically for safe towing.
• Improves driveability, throttle response, and towing confidence.