Light Tow Tune Only for EFI Live Spade

Features:

• 50 State Legal CARB EO D-845
• Emissions equipment remains fully intact
• Designed for towing under 8,000 lbs
• Up to 55 RWHP increase
• Up to 99 lb-ft torque gain
• SMART EGT control manages temperatures
• Smooth power curve for daily driving
• Revised pedal sensitivity improves control
• Improved low speed trailer maneuvering
• Retains full factory turbo brake function
• Over 100 calibration changes from stock
• Requires EFI Live AutoCal V3 device

Confident Towing Power That Keeps Your Duramax Comfortable And Controlled

If you use your 2014 Silverado or Sierra 2500HD or 3500HD to tow a small boat, car trailer, or work equipment, this Light Tow Tune is built exactly for that kind of real world use. It adds up to 55 rear wheel horsepower and 99 lb-ft of torque, which is enough to wake the truck up without pushing it beyond its comfort zone. You will notice the difference right away when pulling onto the highway or climbing a grade with a trailer hooked up. The revised pedal sensitivity makes low speed maneuvering smoother, so backing into a driveway or lining up to a trailer feels controlled instead of jumpy. Additionally, the factory turbo brake remains fully functional, giving you the downhill confidence you rely on. This tune is designed for loads under 8,000 pounds, making it ideal for seasonal towing or daily work trucks that stay moderately loaded. Best of all, your emissions equipment stays intact and the calibration is 50 State Legal under CARB E.O. D-845, so you can tow with peace of mind.

Advanced EGT Management And Custom Calibration For Reliable Light Duty Towing

Behind the added power is a carefully developed custom calibration from DuramaxTuner.com that includes more than 100 changes from stock. The built in SMART EGT control actively manages exhaust gas temperatures, helping protect your engine when you are pulling through rolling hills or dealing with stop and go traffic. Air fuel ratio limits are also integrated into the tune to help reduce soot production compared to many generic programmers. Furthermore, there is no wire splicing or tampering with factory sensors, which keeps the installation clean and your truck’s systems operating as intended. The wider torque curve improves drivability across the RPM range, allowing you to shift up and throttle back while maintaining momentum. This tune requires the EFI Live AutoCal V3 device for flashing and supports professional level data logging for diagnostics. For trucks running larger tires or other modifications that affect RPM, pairing this with recommended TCM tuning helps optimize shift strategy and torque converter lockup for even better control under load.

Fitment: 2014 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Fits 2014 GM 6.6L Duramax LML only
• Designed for towing under 8,000 lbs
• Use Heavy Tow for higher loads
• Emissions equipment must remain installed
• 50 State Legal CARB EO D-845
• Requires EFI Live AutoCal V3 device
• Additional EFI Live license may be required
• Provide serial number if reusing hardware
• Transmission tuning strongly recommended
• Important for trucks with larger tires
• California Proposition 65 warning applies