50 State Legal FIVE Tune Pack Only for EFI Live Spade

Features:

• Fits 2012 6.6L Duramax LML
• 50 state legal emissions compliant
• Emissions equipment remains fully intact
• Includes five custom tuning levels
• Sport tune up to plus 135 RWHP
• Street tune balanced daily performance
• Light and Heavy tow calibrations
• Optimized stock troubleshooting file included
• Over 100 calibration changes
• Retains factory turbo brake function
• Requires EFI Live AutoCal V3
• EFILive license included for one vehicle

One Truck Five Personalities All 50 State Legal

If you drive a 2012 Silverado or Sierra 2500HD or 3500HD LML, you already know it can be a workhorse one day and a weekend toy the next. This 50 State Legal FIVE Tune Pack lets you tap into that flexibility without removing a single piece of emissions equipment. With Sport, Street, Light Tow, Heavy Tow, and Optimized Stock calibrations, you can match the truck’s behavior to exactly what you are doing. The Sport tune delivers up to plus 135 rear wheel horsepower for those moments when you want strong acceleration and sharp throttle response. Switch over to Street for a smooth, responsive daily driver, or choose one of the tow files for controlled torque and built in SMART EGT management when a trailer is hooked up. Additionally, the Optimized Stock file gives you a near factory option for troubleshooting or lending the truck to someone else. It is a clean, emissions compliant way to make your LML feel stronger, smarter, and more enjoyable every time you turn the key.

Advanced Multi Level Calibration Engineered For Power And Control

This FIVE Tune Pack is engineered specifically for the 2012 6.6L Duramax LML and is certified 50 state legal under E.O. D-845. Each calibration includes more than 100 changes from stock, carefully refining fuel delivery, torque management, throttle mapping, and shift behavior. The Sport and Street tunes focus on responsive power with controlled soot output, while the Light Tow and Heavy Tow files incorporate SMART EGT control to automatically manage exhaust gas temperatures under load. Furthermore, built in air fuel ratio limits help maintain emissions system integrity while improving overall performance. The package requires the EFI Live AutoCal V3 hardware for flashing and includes an EFILive license for one vehicle. Factory turbo brake functionality is retained across applicable calibrations, preserving the features you rely on when towing. For optimal drivability and durability, transmission tuning is strongly recommended, especially on trucks with larger tires or additional engine modifications.

Fitment: 2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Fits 2012 6.6L Duramax LML only
• 50 state legal with emissions intact
• Emissions equipment must remain installed
• Requires EFI Live AutoCal V3 device
• EFILive license valid for one vehicle
• Additional license required for other trucks
• TCM tuning strongly recommended
• Sport tune not ideal for heavy towing
• Proper gauges recommended for high power
• California Prop 65 warning applies