Optimized Stock Tune incl EFI Live SPADE - LML (2014)

This Optimized Stock Tune for the 2014 Silverado or Sierra 2500HD/3500HD LML provides a refined driving experience without focusing on high horsepower. It maintains full emissions equipment, making it 49-state legal, and offers improved drivability. The calibration subtly revises the factory file to reduce smoke output and smooth operation. It's also suitable for trucks with mild upgrades like an intake, offering tuning support without increasing power. Ideal for situations where predictable, factory-like behavior is desired, it allows confident towing without the added torque of dedicated tow tunes. This package is engineered specifically for the 2014 6.6L Duramax LML and includes the EFI Live AutoCal V3 device for flashing and data logging. The Optimized Stock calibration makes minor adjustments to fuel delivery, torque management, and throttle mapping while keeping peak power levels near factory output. It supports custom tire size settings to correct speedometer readings and TPMS concerns. Its emissions compliance and lack of aggressive power increases make it useful for troubleshooting mechanical issues or as part of a multi-tune setup. An EFILive license for one vehicle is included, and transmission tuning is recommended for improved shift quality.