Street Tune Only for EFI Live Spade

Features:

• Gain up to 110 RWHP and 198 ft-lbs
• Emissions intact, no deletes or tampering required
• 49-state legal custom street performance tune
• Designed for stock or lightly modified trucks
• No dead pedal feeling at any speed
• Faster acceleration and smoother throttle response
• Factory turbo brake stays fully functional
• Over 100 calibration changes from factory settings
• Cleaner power with reduced soot output
• No wire splicing or sensor modification needed
• Ideal for spirited daily driving or weekend use
• Requires EFI Live SPADE AutoCal V3 hardware

Wake Your Truck Up Without Getting Carried Away

If your 2016 Duramax feels sluggish or just doesn’t deliver the punch you expected, the Street Tune from DuramaxTuner.com gives it the boost it deserves. With up to 110 rear-wheel horsepower and 198 ft-lbs of torque added, your truck comes alive with smoother throttle response, stronger mid-range pull, and faster acceleration off the line. It’s the kind of performance upgrade you can feel right away, perfect for daily driving, weekend runs, or just making your truck more fun to drive. The tune is 49-state legal and keeps your emissions equipment fully intact, so you don’t have to mess with anything under the hood to enjoy a noticeable power increase. It’s also a great option if you only tow occasionally or want a responsive truck that doesn’t feel over-tuned. The power comes in smooth, not harsh, and throttle input feels more predictable in every gear. Whether you're rolling down the highway or cruising around town, this tune brings your truck closer to how it should have come from the factory.

Engineered Power Delivery With Clean Safe Calibration

This custom Street Tune is designed specifically for the 2016 6.6L Duramax LML platform and is built around more than 100 unique calibration changes that enhance both power and drivability. It carefully balances fuel delivery, throttle mapping, and torque management to offer significant gains while maintaining factory-level reliability. The tune is delivered through EFI Live’s SPADE AutoCal V3, which connects via the OBD-II port and allows you to flash your vehicle, log performance data, and scan for trouble codes with no permanent modifications. Air-fuel ratios are kept in check to limit soot production, and factory systems such as the turbo brake remain fully functional. This version is 49-state legal and emissions intact, making it a safe choice for owners looking for improved performance without regulatory headaches. While the tune dramatically improves everyday driving, it is not intended for heavy towing or aggressive load use without additional monitoring equipment. For drivers with larger tires or other performance mods, adding TCM tuning is recommended to keep shift points dialed in and drivability sharp under increased power.

Fitment: 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• This is a single custom Street Tune, not a tune pack
• Requires EFI Live Spade AutoCal V3 hardware
• EFILive license is required if using existing hardware
• 49-state legal, not certified for use in California
• Emissions equipment must remain installed and functional
• Not intended for heavy towing or high-load use
• Excessive abuse may cause elevated temps or mechanical issues
• Custom tuning is based on your truck’s VIN
• Transmission tuning is highly recommended for best drivability
• No wiring or sensor modifications are needed for installation
• Supports tune updates, data logging, and diagnostics
• Ideal for daily drivers, weekend use, or light-duty towing