49 State Legal FIVE Tune Pack incl EFI Live Spade

Features:

• Five custom tunes in one pack
• 49 State Legal emissions compliant
• Emissions equipment remains fully intact
• Up to 135 RWHP increase
• Up to 243 lb-ft torque gain
• Includes EFI Live AutoCal V3
• Over 100 calibration changes from stock
• SMART EGT control for safer towing
• Air fuel limits reduce soot output
• Retains factory turbo brake function
• Light and Heavy Tow specific calibrations
• Optimized Stock tune for diagnostics

Five Power Levels That Transform Your 2015 Duramax Into A Do It All Machine

If you want your 2015 Silverado or Sierra 2500HD or 3500HD to feel like it has multiple personalities on demand, this Five Tune Pack is exactly what you have been looking for. Instead of locking you into one power level, it gives you the flexibility to choose Sport, Street, Light Tow, Heavy Tow, or an Optimized Stock file depending on what the day calls for. The Sport tune delivers up to 135 rear wheel horsepower and 243 lb-ft of torque, turning your daily drive into something that feels sharp and alive without sacrificing OEM reliability. When you need a balanced setup for everyday use, the Street tune offers strong gains with smooth throttle response and reduced soot output. For trucks that see trailer duty, the Light Tow and Heavy Tow calibrations are designed to manage EGTs and keep power usable where it matters most. Additionally, the Optimized Stock file is perfect for troubleshooting or when someone else is behind the wheel. Best of all, your emissions equipment stays intact and the tuning remains 49 State Legal, giving you performance without unnecessary complications.

Custom Calibration And EFI Live Control Engineered For Real World Demands

Under the surface, this is far more than a basic handheld programmer with canned files. Each tune features over 100 calibration changes from stock, carefully developed to improve horsepower, torque delivery, throttle sensitivity, and overall drivability. Built in air fuel ratio limits help control soot production, while SMART EGT control in the tow tunes automatically manages exhaust gas temperatures during heavier loads. The included SPADE device, also known as the EFI Live AutoCal V3, allows simple OBD flashing along with data logging for diagnostics and performance monitoring. You can flash multiple trucks with the same device, though each vehicle requires its own license, and up to 600 VIN slots are supported. Furthermore, this tuning is designed to work seamlessly with recommended TCM tuning to improve shift timing, torque converter lockup strategy, and clutch holding capacity. The result is a wider torque curve, better powerband control on grades, and quicker, more confident shifts that help you get the most out of your 6.6L LML.

Fitment: 2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Fits 2015 GM 6.6L Duramax LML only
• 49 State Legal, not CARB approved
• Emissions equipment must remain installed
• Individual EFI Live license required per truck
• AutoCal V3 supports multiple VIN licenses
• Transmission tuning strongly recommended
• Important for trucks with larger tires
• Recommended for modified turbo applications
• Light Tow designed under 8,000 lbs
• Heavy Tow supports loads up to GVW
• Optimized Stock useful for diagnostics
• California Proposition 65 warning applies