Transmission Tune Only for EFI Live Spade

Features:

• Fits 2013 6.6L Duramax LML
• Transmission tune for EFI Live
• No additional license required
• Uses existing AutoCal hardware
• Optimized torque converter lockup strategy
• Increased line pressure for clutch holding
• Prevents short shifting under load
• Improves shift timing and firmness
• Keeps engine in optimal rev range
• Enhances drivability with ECM tuning
• Ideal for larger tires and turbos
• Improves towing and performance control

Put The Power To The Ground The Way Your Truck Should

If you have added power to your 2013 Silverado or Sierra 2500HD or 3500HD LML, you have probably felt the limits of the factory transmission tuning. The engine may be stronger, but without proper TCM calibration, the shifts can feel lazy or inconsistent. This Transmission Tune is designed to bring everything together so the truck feels tighter, quicker, and more responsive. By refining shift timing and torque converter lockup strategy, it helps transfer power to the ground instead of wasting it between gears. Additionally, increased line pressure improves clutch holding capacity, which is especially important on tuned or modified trucks. Whether you are running larger tires, a modified turbo, or custom ECM tuning, this upgrade helps the transmission keep up. It is one of those changes you notice immediately the first time you roll into the throttle.

Precision Calibrated TCM Tuning For Optimized Shift Control

This transmission tune is engineered specifically for the 2013 6.6L Duramax LML and is designed to work seamlessly with EFI Live hardware you already own. No additional license is required, and you can use your existing AutoCal device to flash the updated TCM calibration. The tuning adjusts shift points, line pressure, and torque converter lockup parameters to ensure the engine stays within its preferred operating range. Furthermore, it helps prevent short shifting in performance applications and maintains better gear control when towing heavy loads. By coordinating with your ECM tuning, it creates smoother drivability and improved acceleration through each gear. This is particularly beneficial for trucks equipped with larger tires, built transmissions, or upgraded turbo systems that alter operating RPM characteristics. For owners who want their drivetrain to feel cohesive and controlled, this TCM tune delivers a focused and effective solution.

Fitment: 2013 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Fits 2013 6.6L Duramax LML only
• Transmission tune only no ECM tuning
• Requires existing EFI Live AutoCal device
• No additional EFILive license required
• Designed to complement custom ECM tuning
• Recommended for larger tires or turbos
• Beneficial for built transmissions
• Professional installation recommended if unsure
• Intended for modified operating RPM ranges
• Verify current hardware compatibility before purchase