Switch on the Fly Tune incl EFI Live Spade

Features:

• Includes All Five Custom Duramax Tunes
• Switch Tunes Instantly While Driving
• Emissions Equipment Stays Fully Intact
• Gain Up To +135 RWHP and +243 ft-lbs
• Street Tune Ideal For Daily Driving
• Heavy Tow Tune Supports Up To GVW
• Light Tow Tune For Under 8,000 lbs
• Optimized Stock Tune For Troubleshooting
• Custom SMART EGT Control Built In
• No Wire Cutting Or Sensor Taps Needed
• SPADE EFI Live Autocal v3 Included
• TCM Tuning Strongly Recommended For Best Results

This Is The Tuning Setup Your Duramax Deserves

If you want total control over your truck’s power without sacrificing drivability, this Switch-On-The-Fly Tune with EFI Live Spade is exactly what you’ve been waiting for. Whether you're hauling up steep grades, daily driving, or just out having fun, this setup gives you five custom tunes that you can switch between while driving. No more pulling over, plugging in, or re-flashing your ECM just to change power levels. With options like Sport, Street, Light Tow, Heavy Tow, and Optimized Stock, you get everything you need for any driving scenario. Each tune is emissions intact and 50 State Legal, so you stay compliant without giving up performance. Backed by over 14 years of tuning experience, this setup delivers smooth shifts, fast throttle response, and safe power gains you can feel right away. Plus, it's all built with long-term reliability in mind, so you can enjoy the added power without worrying about harming your engine. If you're ready to make your truck more versatile, powerful, and fun to drive, this is the tune pack to grab.

Five Tunes One Truck Endless Possibilities

This tuning package uses EFI Live’s Spade hardware to let you switch between five unique tunes directly from your cab, giving you complete control over your Duramax LML’s performance. Each tune is fully custom-built with over 100 calibration changes and designed to work safely with all factory emissions equipment. The Sport tune pushes your LML to 532 HP and over 1000 ft-lbs of torque, while still keeping pedal feel smooth and responsive. For daily use, the Street and Light Tow tunes offer refined power delivery, improved throttle mapping, and EGT-limiting safeguards for safer towing under 8,000 lbs. If you need to move heavier loads, the Heavy Tow tune boosts torque without compromising exhaust temps or drivability. Even the Optimized Stock tune has a purpose, helping troubleshoot mechanical issues without stripping the truck of its driveability. And with the included EFI Live Autocal v3, flashing updates or logging diagnostics is as simple as plugging in. This system was built for real-world use, from job sites to weekend getaways, all with the performance and reliability DuramaxTuner.com is known for.

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

Notes:

• Includes all five custom tunes: Sport, Street, Light Tow, Heavy Tow, and Optimized Stock
• Switch between power levels while driving, no re-flashing required
• EFI Live AutoCal v3 hardware is included with this package
• Tunes are emissions intact and 50 State Legal
• Tunes are custom-built with over 100+ calibration changes from stock
• SPADE tuning avoids hacking into wires or sensors
• Sport Tune is not recommended for towing or inexperienced drivers
• Heavy Tow and Light Tow tunes are designed with SMART EGT control
• Revised pedal sensitivity improves drivability in all scenarios
• Optimized Stock tune is great for troubleshooting or lending the truck
• Transmission (TCM) tuning is highly recommended for best performance
• Ideal for trucks with larger tires, built transmissions, or modified turbos