Optimized Stock Tune Only for EFI Live Spade

Features:

• 50 State Legal Emissions Compliant Tuning
• No removal of emissions equipment required
• Includes slight factory calibration revisions
• No significant peak power increase
• Helps reduce smoke output and soot
• Great for new tuners or cautious owners
• Ideal for troubleshooting truck performance issues
• Good for trucks with intake upgrades only
• Helps eliminate TPMS issues with tire size change
• Compatible with EFI Live AutoCal v3 hardware
• Works great with transmission tuning upgrades
• Perfect for lending your truck to other drivers

Keep Your Truck Sharp Without Chasing Horsepower

Not everyone is looking to squeeze out every last bit of power from their truck. Sometimes, it’s about refining what you already have and making it run the way it should have from the factory. The Optimized Stock Tune is perfect for the everyday driver who wants smoother drivability, better throttle response, and fewer quirks without affecting emissions or pushing performance too far. This tune keeps your emissions equipment intact and fully operational, so you stay legal in all 50 states. It’s especially handy if you’ve got someone else regularly driving your truck or if you’re simply easing into the world of custom tuning. Whether you're working through a drivability issue or just want to clean up how your truck runs, this tune offers a safe, reliable improvement. Think of it as tightening everything up and giving your truck a smarter, more refined brain without overcomplicating things. It’s all the benefits of tuning without the worry of going too far.

Tuning Designed For Reliability And Practical Use

This Optimized Stock Tune makes subtle but meaningful adjustments to the factory calibration on your 2014 Duramax LML. While it doesn't raise peak horsepower, it does improve consistency and efficiency across the board. Smoke output is reduced thanks to revised fuel mapping, and custom air-fuel ratio targets help the engine run cleaner and more controlled. This tune is especially useful for trucks with mild upgrades like intakes or when diagnosing mechanical issues that are masked by the factory tune. It’s also compatible with custom tire sizing to eliminate TPMS errors, which is a frequent issue for owners running aftermarket wheels and tires. Because the tune is emissions intact and approved in all 50 states, you won’t run into legal issues during inspections or emissions testing. Paired with recommended TCM tuning, it delivers smoother shifts and helps maintain your engine in its ideal operating range. It’s a smart choice for daily drivers who want precision without the pursuit of more power.

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

Notes:

• This tune does not increase peak horsepower or torque.
• Ideal for drivers who want cleaner operation without adding power.
• Emissions equipment remains fully intact and operational.
• 50 State Legal with CARB EO# D-845.
• Best suited for stock trucks or those with minimal upgrades.
• Commonly used in Switch on the Fly setups for safer driving modes.
• Helpful for troubleshooting drivability or mechanical issues.
• Reduces smoke output with optimized air-fuel ratios.
• Can be used to correct tire size and resolve TPMS issues.
• Recommended for customers interested in transmission tuning only.
• Not intended for performance gains or heavy towing enhancements.
• Requires EFI Live AutoCal v3 and an additional license for new VINs.