49 State Legal FIVE Tune Pack incl EFI Live Spade

Features:

• Includes five custom tuning power levels
• 49 state legal with emissions equipment intact
• Up to 135 RWHP and 243 ft-lbs torque
• Switchable tunes for any driving scenario
• Sport, Street, Light Tow, Heavy Tow, Stock
• Improved throttle response and shift control
• Smart EGT control manages exhaust temps
• Designed for towing up to 8,000 lbs GVW
• Cleaner tunes with less soot than box tuners
• Comes with EFI Live AutoCal V3 programmer
• Supports up to 600 VIN licenses
• Custom tuning includes 100+ calibration changes

Make Every Drive Feel Like A New Truck

If you're looking to transform how your truck drives without sacrificing reliability, the 49 State Legal FIVE Tune Pack is the perfect upgrade. Whether you’re towing a trailer, hauling tools to the job site, or just enjoying an empty back road, this setup gives you five unique tuning profiles to match your day. The Sport tune brings serious power with up to 135 additional RWHP, while Street delivers a quick and fun daily driving experience. For workdays, the Light and Heavy Tow tunes help get your load moving faster and more efficiently without putting your truck at risk. And when someone else is behind the wheel or you just want stock-like drivability, the Optimized Stock tune is ready to go. The shift from tune to tune is seamless with the included EFI Live AutoCal v3, giving you total flexibility on demand. This isn't just a performance upgrade, it's full control of your truck’s personality at your fingertips.

Calibrated Power With Precision Built For The Road

DuramaxTuner’s FIVE Tune Pack includes fully custom ECM tuning with over 100 changes from the stock calibration, tailored specifically for your 2012 LML Duramax. Each tune is engineered to provide smooth power delivery while keeping emissions equipment intact and compliant for 49 states. Air-fuel ratio limits are baked into the calibrations to reduce soot output, and SMART EGT control helps manage exhaust temps during heavy towing or aggressive driving. With tunes like Light Tow and Heavy Tow, your truck gains usable torque across the rev range and improved drivability while under load. The Sport and Street options improve throttle response, eliminate dead pedal, and optimize acceleration without compromising reliability. Every tune retains the factory turbo brake and is compatible with additional upgrades like TCM tuning for better shift quality and clutch performance. Paired with the EFI Live AutoCal v3, you'll also get diagnostics, data logging, and the ability to flash multiple updates as your setup evolves.

Fitment: 2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• This tuning package includes five custom tunes tailored to various driving needs.
• All tunes are emissions intact and 49 state legal.
• EFI Live AutoCal v3 device is included with the tune pack.
• Sport tune delivers +135 RWHP and +243 ft-lbs of torque.
• Heavy Tow and Light Tow tunes are designed to manage EGTs and towing performance.
• Tunes are switchable using the included SPADE AutoCal device.
• Each tune includes over 100 calibration changes for optimized performance.
• TCM tuning is recommended for trucks with transmission or tire modifications.
• Custom tuning is compatible with trucks running factory emissions equipment.
• Optimized Stock tune is great for diagnostics or when lending your truck.
• Not intended for California use, check local emissions regulations.
• Each tune is designed for safe operation with factory components when used properly.