Optimized Stock Tune Only for EFI Live Spade

Features:

• 50 State Legal CARB EO D-845
• Emissions equipment remains fully intact
• Optimized factory calibration refinement
• No significant peak power increase
• Lower smoke output than stock
• Ideal for troubleshooting drivability issues
• Great for new tuned truck owners
• Compatible with custom intake upgrades
• Allows custom tire size adjustments
• Retains full factory turbo brake
• Requires EFI Live AutoCal V3
• Supports professional transmission tuning

Refined Factory Performance With Smarter Everyday Driveability

Not every truck owner is chasing huge horsepower numbers, and that is exactly where this Optimized Stock Tune for your 2014 Silverado or Sierra 2500HD or 3500HD LML makes perfect sense. This calibration keeps the heart of your factory setup intact while refining it for smoother operation and cleaner performance. You will not see a big jump in peak power, but you will notice improved drivability, reduced smoke output, and a more polished feel behind the wheel. It is a great choice if you recently installed a cold air intake or minor upgrade that requires tuning but you are not looking to push the limits. Additionally, it is ideal when someone else needs to drive your truck and you want a safe, predictable setup loaded. Many owners also use this file for troubleshooting mechanical issues, since it slightly revises the factory calibration without dramatically altering output. With emissions equipment remaining fully intact and 50 State Legal compliance under CARB E.O. D-845, this tune offers peace of mind along with subtle improvement.

Precision Calibration Control With EFI Live Integration

Under the surface, this Optimized Stock Tune is more than a simple stock reflash. It is a carefully adjusted custom calibration designed to clean up factory mapping while maintaining original power levels and reliability. The tune requires the EFI Live AutoCal V3, also known as the SPADE device, which allows straightforward OBD flashing and professional level data logging for diagnostics. You can also use it to adjust tire size settings, helping correct speedometer and TPMS behavior after wheel and tire changes. Furthermore, this file works seamlessly with recommended transmission tuning to improve shift quality and torque converter lockup strategy without increasing engine output. There is no wire splicing or sensor tampering involved, so installation remains clean and reversible. For owners who want better drivability, lower smoke, and refined calibration without adding stress to the drivetrain, this is a smart and practical solution.

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

Notes:

• Fits 2014 GM 6.6L Duramax LML only
• No significant peak power increase
• Designed for refined stock performance
• Emissions equipment must remain installed
• 50 State Legal CARB EO D-845
• Requires EFI Live AutoCal V3 device
• Additional license needed for other trucks
• Ideal for troubleshooting drivability concerns
• Useful when others drive your truck
• Allows tire size calibration adjustments
• Transmission tuning recommended for best results
• California Proposition 65 warning applies