50 State Legal FIVE Tune Pack incl EFI Live Spade

Features:

• Includes EFI Live SPADE AutoCal V3 device
• Five custom tunes tailored to your needs
• 50-state legal with emissions equipment intact
• Up to +135 RWHP and +243 ft-lbs torque
• Fully customized tuning with 100+ changes
• Safe for engine and emissions components
• Improves throttle response and driveability
• SMART EGT control protects while towing
• Optimized for towing, street, or performance
• Factory turbo braking fully retained
• Flash updates easily via OBD port
• World-class support from DuramaxTuner.com

Turn Your Duramax Into The Truck You Always Wanted

The moment you fire up your 2015 Silverado or Sierra HD with this Five Tune Pack installed, the difference feels immediate and intentional. This setup gives you real control over how your 6.6L Duramax responds, from calm daily driving to confident towing and aggressive performance when you want it. With five purpose-built tunes loaded through the included EFI Live SPADE AutoCal V3, you can tailor the truck to match your workload or mood without sacrificing reliability. Throttle response becomes crisp, power delivery feels smoother, and the truck no longer feels held back from the factory. What’s more, everything stays emissions intact and fully 50-state legal, so you get the gains without the stress of compliance issues. It is the kind of upgrade that makes long drives easier, trailers feel lighter, and every pull onto the highway more satisfying. If you enjoy driving your truck and actually using it the way it was meant to be used, this tuning package delivers exactly that.

Purpose Built Tuning With Hardware Included And Emissions Intact

This Five Tune Pack includes the EFI Live SPADE AutoCal V3, giving you a simple handheld solution to flash and manage custom calibrations directly through the OBD port. Each tune is developed with more than 100 calibration changes from stock, ensuring controlled fueling, optimized timing, and balanced power delivery across all driving conditions. The Sport and Street tunes provide noticeable horsepower and torque gains while maintaining smooth power curves and factory turbo brake functionality. Light Tow and Heavy Tow tunes are engineered with SMART EGT Control and air-fuel ratio limits to manage exhaust temperatures and reduce soot during sustained loads. The Optimized Stock tune keeps peak power close to factory, making it useful for diagnostics or shared driving situations. All tunes are designed to protect engine components and emissions systems while delivering more usable power than box-style programmers. When paired with recommended TCM tuning, shifting behavior improves and power stays where the truck can use it most.

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

Notes:

• Includes EFI Live SPADE (AutoCal V3) hardware
• EFiLive license is included with this purchase
• Compatible with 2015 GM 2500HD/3500HD 6.6L Duramax LML
• This is a 50-state legal emissions intact tuning package
• Tunes will not delete or disable emissions equipment
• Each tune is built for a specific driving scenario
• SPADE can be used on multiple trucks, but each requires its own license and tuning
• Custom ECM tuning may require TCM tuning for best performance
• Recommended for trucks with larger tires, turbos, or built transmissions
• DuramaxTuner.com offers world-class customer support if assistance is needed
• Tuning device allows data logging and flashing via OBD port
• This product may expose users to chemicals listed under California Proposition 65