Street Tune incl EFI Live SPADE

Features:

• 50 State Legal CARB EO D-845
• Emissions equipment remains fully intact
• Up to 110 RWHP increase
• Up to 198 lb-ft torque gain
• Smooth daily driving power delivery
• No dead pedal throttle response
• Retains full factory turbo brake
• Over 100 calibration changes
• More power with reduced soot
• Includes EFI Live AutoCal V3
• Simple handheld OBD flashing
• Professional custom tuning support

Everyday Street Power That Makes Your LML Feel Alive Again

If your 2012 Silverado or Sierra 2500HD or 3500HD feels strong but a little too tame, this Street Tune is the upgrade that brings it to life without going overboard. With gains of up to 110 rear wheel horsepower and 198 lb-ft of torque, the truck pulls harder through the midrange and responds instantly when you tip into the throttle. The dead pedal feeling disappears, and the acceleration feels crisp and effortless, especially when merging onto the highway or passing slower traffic. What really stands out is how smooth the power curve feels, making the truck just as enjoyable in daily driving as it is during spirited runs. Additionally, the factory turbo brake remains fully functional, so you keep the control you rely on when slowing down or towing light loads. This tune is ideal for owners who drive their truck often, tow occasionally under 8,000 pounds, and want that strong diesel feel back. With emissions equipment remaining intact and full 50 State Legal compliance under CARB E.O. D-845, you get performance you can enjoy with confidence.

Advanced Calibration Strategy With EFI Live Control And OEM Reliability

Behind the added power is a carefully developed custom calibration from DuramaxTuner.com featuring more than 100 changes from stock programming. Fueling, torque management, and throttle mapping are refined to deliver stronger output while maintaining OEM levels of reliability. Air fuel ratio limits are built into the calibration to help reduce soot compared to many basic box programmers. The included EFI Live AutoCal V3, also known as the SPADE device, allows simple handheld OBD flashing along with professional level data logging for diagnostics and monitoring. There is no wire splicing or sensor tampering required, keeping installation clean and factory systems protected. When paired with recommended TCM tuning, shift timing and torque converter lockup strategy are optimized to better handle the increased torque. The result is a wider, more usable torque curve that keeps the truck in its powerband and delivers smooth, confident performance in real world driving.

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

Notes:

• Fits 2012 GM 6.6L Duramax LML only
• Designed for daily driving performance
• Not ideal for frequent heavy towing
• Monitor gauges when towing near capacity
• Emissions equipment must remain installed
• 50 State Legal CARB EO D-845
• Includes EFI Live AutoCal V3
• Additional license required for other trucks
• Transmission tuning strongly recommended
• Important for larger tires or turbos
• Switch On The Fly recommended for towing
• California Proposition 65 warning applies