Optimized Stock Tune Only for EFI Live Spade

Features:

• Emissions intact and 50-state legal
• Designed for EFI Live Spade users
• Retains factory reliability and drivability
• Slight revisions to factory calibration
• No increase in peak horsepower or torque
• Helps reduce smoke and soot output
• Ideal for custom intakes or mild upgrades
• Great for troubleshooting mechanical issues
• Safe tune for loaning your truck to others
• Useful for setting custom tire sizes
• Pairs well with TCM tuning for smooth shifting
• Works well in Switch on the Fly setups

Keep It Simple Clean And Daily Driver Friendly

Not every Duramax owner is chasing big horsepower, some just want a tune that keeps things reliable, clean, and smooth. The Optimized Stock Tune for your 2013 Silverado or Sierra HD gives you exactly that. It’s perfect if you’ve added a small upgrade like a cold air intake or just want a cleaner, more refined driving experience without increasing power. You’ll notice better throttle feel and smoother shifting without pushing your truck harder than it needs to go. This is a smart choice if someone else is going to be behind the wheel or if you're just getting into tuning and want to play it safe. It keeps emissions systems fully intact and is 50-state legal, so you don’t have to worry about inspections or compliance. Whether it’s your daily driver or your backup work truck, this tune delivers confidence without complications.

Calibrated To Support Mods Without Adding Power

The Optimized Stock Tune is a subtle yet essential option for 2013 GM 2500HD and 3500HD Duramax LML owners who want calibration support without a performance bump. This tune includes slight adjustments to the factory ECM to accommodate minor upgrades like aftermarket intakes, tire size corrections, or transmission tuning, all while keeping emissions systems untouched. It’s ideal for drivers who need tuning flexibility but prefer to maintain stock horsepower and torque levels. With reduced soot output and no increase in peak power, it helps improve overall drivability and efficiency while maintaining long-term reliability. The tune is fully compliant with CARB standards under EO# D-845, making it 50-state legal and emissions safe. It’s also useful when troubleshooting mechanical issues or setting up your truck for multiple drivers through Switch on the Fly configurations. Paired with TCM tuning, it helps keep your engine and transmission operating smoothly without introducing unnecessary stress.

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

Notes:

• Requires EFI Live SPADE AutoCal v3 hardware
• 50-state legal under CARB EO# D-845
• Emissions equipment must remain installed and functional
• Does not increase peak horsepower or torque
• Ideal for trucks with minor upgrades like intakes
• Useful for setting custom tire sizes and eliminating TPMS issues
• Recommended for new tuners or cautious users
• Helps reduce smoke and soot output under normal driving
• Safe option when someone else is driving your truck
• Good choice for troubleshooting mechanical problems
• Pairs well with TCM tuning for improved shifting
• Often used in Switch on the Fly setups as a baseline tune