2013-14 GM 6.6L LML Engine Control Module 12660026

2013-14 GM 6.6L LML Engine Control Module (ECM) Tuning

Unlock the full potential of your 2013-14 GM 6.6L LML Duramax with our precision-engineered ECM tuning. Designed for heavy-duty truck owners who demand more power, better throttle response, and optimized fuel efficiency, this custom calibration transforms your truck's performance while maintaining reliability.

What's Included:

• Custom ECM calibration tailored to your specific application
• Increased horsepower and torque across the powerband
• Improved throttle response and drivability
• Optimized fuel mapping for better efficiency
• Enhanced transmission communication for smoother shifts