Street Tune Only for EFI Live Spade

Features:

• Fits 2012 6.6L Duramax LML
• 50 state legal emissions compliant
• Emissions equipment remains fully intact
• Plus 110 RWHP and 198 lb ft
• Smooth responsive daily driving power
• No dead pedal throttle response
• Retains factory turbo brake function
• Over 100 calibration changes
• More power less soot than programmers
• Requires EFI Live AutoCal V3
• Supports future performance modifications
• Works with recommended transmission tuning

Wake Up Your 2012 LML With Smooth Street Ready Power

If your 2012 Silverado or Sierra 2500HD or 3500HD LML feels a little too tame from the factory, this Street Tune is the perfect way to bring it to life. With gains of plus 110 rear wheel horsepower and 198 lb ft of torque, the truck pulls harder and accelerates with confidence while keeping reliability in check. The throttle response is crisp and immediate, eliminating that sluggish dead pedal feeling that can make a heavy duty truck seem lazy. Additionally, the smooth power curve makes daily driving more enjoyable, whether you are commuting on the highway or heading out for a weekend cruise. Factory turbo brake functionality remains fully operational, so you do not lose the control you depend on. This tune is ideal for owners who tow occasionally under 8000 pounds but want stronger performance the rest of the time. It delivers the kind of balanced power that makes you look forward to driving your truck every day.

Professionally Calibrated Street Performance With Emissions Compliance

Designed specifically for the 2012 6.6L Duramax LML, this Street Tune is 50 state legal and keeps all emissions equipment intact. The calibration includes more than 100 changes from stock, carefully adjusting fuel delivery, torque management, and throttle mapping for consistent and controlled performance. Furthermore, it produces more usable power with less soot than typical box programmers, all without modifying factory sensor wiring. The tune requires the EFI Live AutoCal V3 device for flashing and supports future updates as your build evolves. Transmission tuning is strongly recommended to improve shift timing and torque converter lockup, especially on trucks with larger tires or added power. While the tune can handle light towing, heavy or frequent towing is better suited to dedicated tow calibrations. For drivers who want responsive daily performance backed by a well engineered calibration strategy, this Street Tune offers a confident and compliant solution.

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

Notes:

• Fits 2012 6.6L Duramax LML only
• 50 state legal with emissions intact
• Emissions equipment must remain installed
• EFI Live AutoCal V3 required
• Additional EFILive license may be required
• Not ideal for heavy towing use
• Monitor gauges when towing occasionally
• Switch on the Fly recommended for towing
• TCM tuning strongly recommended
• California Prop 65 warning applies