Sport Tune incl EFI Live SPADE

Features:

• Up to 135 HP increase
• Up to 243 lb-ft torque gain
• 532 HP and 1008 lb-ft total
• 49 State Legal emissions compliant
• Emissions equipment remains fully intact
• Includes EFI Live AutoCal V3
• Over 100 calibration changes from stock
• Firm shifting and faster acceleration
• No dead pedal throttle response
• Retains factory turbo brake function
• More power with reduced soot output
• Professional level custom tuning support

Unleash The Hardest Hitting Legal Power Your LML Can Handle

If you have been waiting for the moment to truly wake up your 2012 Silverado or Sierra 2500HD or 3500HD, this Sport Tune is where things get serious. Right out of the gate you are looking at gains of up to 135 horsepower and 243 lb-ft of torque, pushing total output to an impressive 532 horsepower and 1008 lb-ft at the crank. The truck pulls harder through every gear, throttle response feels immediate, and the dead pedal sensation is completely gone. Acceleration is sharp and aggressive, giving you that adrenaline rush every time you roll into it. Even with that level of performance, your emissions equipment remains fully intact and the tune stays 49 State Legal. The factory turbo brake continues to function as it should, so you are not sacrificing control for power. This is the tune for the driver who wants the most performance available while staying within legal limits and is ready to support that power properly.

Advanced Calibration Strategy And EFI Live Control For Maximum Output

This is not a generic performance file but a fully custom calibration from DuramaxTuner.com featuring more than 100 changes from stock programming. Fueling, timing, torque management, and shift behavior are carefully revised to deliver strong, usable power while maintaining responsible control of the emissions system. The included EFI Live AutoCal V3, also known as the SPADE device, allows simple OBD flashing and professional level data logging for diagnostics and monitoring. Firm shifting is built into the calibration, and pairing the tune with recommended TCM tuning further improves torque converter lockup and clutch holding capacity. That combination helps put power to the ground efficiently and keeps the engine operating in its preferred rev range. While the truck can technically tow on this file, proper gauges including EGT monitoring are strongly advised due to the added output. For owners planning future upgrades such as lift pumps, fuel system improvements, or transmission enhancements, this Sport Tune provides a powerful foundation to build on.

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

Notes:

• Fits 2012 GM 6.6L Duramax LML only
• 49 State Legal emissions compliant
• Emissions equipment must remain installed
• Designed for maximum legal power output
• Not ideal for frequent heavy towing
• EGT and supporting gauges strongly recommended
• Transmission tuning highly recommended
• Supporting fuel system upgrades advised
• Additional EFI Live license per truck
• AutoCal V3 required for flashing
• Intended for experienced tuned truck drivers
• California Proposition 65 warning applies