Heavy Tow ECM & TCM Tuning Incl. Hardware & Credits Chassis Cab

Features:

• Includes ECM and TCM tuning package
• Safe for heavy towing applications
• Adds +30 HP and +66 ft-lbs
• Emissions equipment remains fully intact
• SMART EGT control manages exhaust temperatures
• Air-fuel limits reduce soot output
• Designed for towing up to 8,000 lbs
• Factory turbo brake stays fully functional
• Improves gear holding under load
• Optimized shift strategy for towing
• Includes HP Tuners RTD hardware
• Includes ECM and TCM tuning credits

Push Your Powerstroke Further Without Breaking A Sweat

If your truck spends most of its life under load, the Heavy Tow tune from DuramaxTuner is built for you. Whether you’re hauling a skid steer to the jobsite, pulling a fully loaded service body, or managing fleet trucks running through mountain grades, this tune delivers extra muscle without pushing your truck too hard. It adds a solid bump in power, 30 rear-wheel horsepower and 66 ft-lbs of torque, just enough to make your rig feel responsive without overworking the engine. This tune is all about confidence on the road: it keeps EGTs in check, manages soot output, and holds gears longer when you’re climbing grades. You still keep all emissions equipment intact and factory turbo brake functionality, so there’s no guesswork or compromise. Best part? It comes with both ECM and TCM tuning plus hardware and credits, so you’re ready to roll straight out of the box. From service crews to long-haul towers, this tune helps your 6.7L Powerstroke handle the weight like a pro.

Built To Pull Smart And Shift With Precision

This Heavy Tow ECM and TCM tuning package gives your 2011–2012 chassis cab everything it needs to tow hard while staying in control. The custom ECM calibration includes over 100 changes from stock, focused on safe power delivery and drivetrain protection under load. It’s designed for trucks that routinely pull up to 8,000 lbs GVW, managing higher load demands with air-fuel ratio limits, automatic SMART EGT control, and reduced soot output. On the transmission side, the included TCM tuning enhances shift quality, increases line pressure for better clutch holding, and adjusts torque converter lockup to maximize usable power. This ensures the truck stays in its powerband longer and avoids short-shifting when you need to climb or accelerate with weight behind you. You also retain factory features like the turbo brake and full emissions functionality. Everything you need, HP Tuners RTD hardware, mobile support, and tuning credits, is bundled in, making it a complete calibration package for serious towing.

Fitment: 2011, 2012 Ford F250/F350 6.7L Powerstroke

Notes:

• Designed specifically for 2011-2012 6.7L Powerstroke chassis cab trucks
• Includes both ECM and TCM tuning with hardware and credits
• Emissions equipment remains fully intact and functional
• Safe for towing heavy loads up to 8,000 lbs GVW
• Ideal for service trucks, fleet vehicles, and equipment haulers
• Provides +30 RWHP and +66 ft-lbs torque increase
• Not recommended for light-duty or unloaded driving goals
• SMART EGT control manages exhaust temperatures automatically
• Improves gear holding and downshift control under load
• Air-fuel ratio calibration helps limit soot production
• Retains factory turbo braking functionality
• Requires RTD hardware by HP Tuners (included)
• Includes 2 HP Tuners universal credits for ECM
• Includes 2 HP Tuners universal credits for TCM
• Transmission tuning is critical to match ECM torque curve
• Recommended for trucks with heavier service beds or frequent incline towing