Optimized Stock Tune incl EFI Live SPADE

Features:

• Emissions equipment stays fully intact
• 49 State Legal tuning solution
• Slight revisions to stock calibration
• No increase in peak horsepower
• Helps reduce smoke output
• Ideal for troubleshooting mechanical issues
• Great option when others drive your truck
• Supports custom intakes without adding power
• Works well for transmission tuning only
• Can tow, but no added towing power
• Includes EFI Live SPADE Autocal v3
• Flash and monitor via handheld device

Keep Your Truck Simple Without Sacrificing Control

Sometimes you want the benefits of tuning without chasing horsepower. That’s exactly where the Optimized Stock Tune with EFI Live SPADE fits in. Designed for 2012 Silverado and Sierra 2500HD and 3500HD trucks with the 6.6L Duramax LML, this tune keeps emissions equipment fully intact and delivers smoother, cleaner performance. If you’re not looking to increase power but still want to correct for tire size, help with transmission tuning, or reduce smoke output, this is a smart and safe option. It’s also perfect if you’re troubleshooting a mechanical issue or handing the truck off to another driver. You get a cleaner-running truck with better calibration without introducing any extra risk. Whether you’ve added a custom intake or just want a slight refinement, this tune keeps everything reliable and predictable. It’s the kind of subtle upgrade that improves drivability without complicating things under the hood.

Clean Calibrations That Work Behind The Scenes

The Optimized Stock Tune uses over 100+ adjustments to fine-tune your factory ECM without increasing horsepower or torque. It’s 49 state legal and emissions intact, making it a smart fit for trucks that need compliance without compromise. This calibration keeps the factory turbo braking feature, corrects air-fuel ratios to reduce soot, and works seamlessly with EFI Live SPADE hardware for a straightforward installation. It’s especially helpful if your truck is running aftermarket parts that require tuning, but you’re not seeking performance gains. With the ability to support transmission tuning and eliminate TPMS issues with custom tire sizes, this tune brings flexibility to your daily setup. It’s also a great base for trucks using Switch on the Fly systems, providing a conservative option when power isn’t needed. Whether you're handing your keys to a less experienced driver or working through engine diagnostics, this tune delivers smart control with zero guesswork.

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

Notes:

• This tune does not significantly increase horsepower or torque.
• Designed for drivers who want factory-like performance with minor refinements.
• Emissions equipment stays fully intact and operational.
• Best used when troubleshooting physical issues with the truck.
• Ideal for trucks with custom intakes or small upgrades requiring calibration.
• Helps reduce smoke output compared to stock calibration.
• Often used in Switch on the Fly setups as a low-power mode.
• Not recommended for drivers looking for towing performance gains.
• Great option when letting someone else drive the truck.
• SPADE hardware and EFILive license are included in the package.
• 49 State Legal, not for use in California if modified.
• Transmission tuning is highly recommended for optimal drivability.