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
• SMART EGT control for tow tunes
• Air fuel limits reduce soot
• Retains factory turbo brake
• Light and Heavy Tow calibrations
• Optimized Stock for troubleshooting

One Tune Pack That Covers Workdays Weekends And Everything In Between

If you want your 2013 Silverado or Sierra 2500HD or 3500HD to handle anything you throw at it, this Five Tune Pack gives you the flexibility to do exactly that. Instead of being locked into a single power level, you get Sport, Street, Light Tow, Heavy Tow, and an Optimized Stock option all in one setup. The Sport tune delivers up to 135 rear wheel horsepower and 243 lb-ft of torque, transforming the truck into a seriously fun daily driver. When you need something more balanced, the Street tune offers strong, smooth power that feels responsive without being over the top. For towing duties, the Light Tow and Heavy Tow calibrations are built to manage EGTs and deliver controlled torque where you need it most. Additionally, the Optimized Stock file is perfect for troubleshooting or when someone else is driving your truck. With emissions equipment remaining fully intact and 49 State Legal compliance, you can enjoy real gains without sacrificing peace of mind.

Advanced EFI Live Calibration With Smart Towing And Drivability Control

Behind each tune is a custom calibration from DuramaxTuner.com featuring more than 100 changes from stock programming. Fuel delivery, torque management, and throttle mapping are carefully refined to provide usable power while protecting engine and emissions systems. The tow specific files include SMART EGT control, which automatically manages exhaust gas temperatures when pulling loads under 8,000 pounds or up to GVW depending on the file selected. Air fuel ratio limits are also built in to help reduce soot compared to many basic programmers. The included EFI Live AutoCal V3, also known as the SPADE device, allows simple OBD flashing along with professional level data logging for monitoring and diagnostics. When paired with recommended TCM tuning, shift timing and torque converter lockup strategy are optimized to keep the engine in its preferred rev range. The result is quicker, more decisive shifts and a wider torque curve that keeps your 6.6L LML pulling strong whether you are cruising empty or towing up a grade.

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

Notes:

• Fits 2013 GM 6.6L Duramax LML only
• 49 State Legal, not CARB approved
• Emissions equipment must remain installed
• Five tunes included for varied use
• Light Tow intended under 8,000 lbs
• Heavy Tow supports loads up to GVW
• EFI Live AutoCal V3 included
• Individual license required per truck
• Transmission tuning strongly recommended
• Important for larger tires or turbos
• Optimized Stock useful for diagnostics
• California Proposition 65 warning applies