SKU: DMTDT8150010007020

Optimized Stock Tune Only for EFI Live Spade

Ships From Manufacturer in 3-5 Days
Confirmed fitment below
YEARS
2012
MAKE / MODEL
GM/Chevrolet/GMC / Silverado/Sierra
SERIES
2500HD/3500HD
ENGINE
6.6L Duramax LML
Price
$300
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PRODUCT DETAIL

Key Features & Description

Features:

  • Emissions equipment remains fully intact
  • 50 state legal for emissions compliance
  • Optimized stock calibration with minor tweaks
  • No significant increase in peak horsepower
  • Reduces smoke output for cleaner performance
  • Ideal for troubleshooting mechanical issues
  • Great when others drive your truck
  • Safe for new or cautious tuners
  • Perfect for transmission tuning only users
  • Set custom tire sizes to fix TPMS issues
  • SPADE Autocal V3 required for installation
  • Supports logging and flashing via handheld device

Keep Your Truck Smooth When Power Is Not The Priority

Not every tune has to push your truck to the limit. If you're the kind of driver who wants improved efficiency and a cleaner running truck without chasing higher horsepower numbers, the Optimized Stock Tune is right up your alley. It keeps all your emissions equipment intact, meets 50 state legal standards, and smooths out your factory calibration with thoughtful adjustments. This is especially useful if you're handing the keys over to someone else or want to keep things conservative while still dialing in better drivability. It’s a smart option for owners who’ve made minor upgrades, like a custom intake, but aren’t chasing big gains. You’ll also benefit from lower smoke output and smoother pedal response without making your truck feel unfamiliar. This tune helps you enjoy a better-than-stock experience while keeping reliability front and center.

Calibrated For Clean Control And Confident Tuning

Technically speaking, this tune makes subtle but meaningful improvements to your factory calibration. It does not spike peak power but instead focuses on refining your Duramax's behavior for smoother throttle input, minimal soot output, and improved shift feel when paired with recommended transmission tuning. It’s perfect for those using EFI Live SPADE hardware who want better drivability, especially if they’re troubleshooting mechanical issues or breaking in upgraded components. The tune can help eliminate TPMS-related issues when tire sizes are changed and works great in a Switch on the Fly setup. There’s no need to worry about emissions compliance, as this configuration retains all factory emissions equipment and carries a 50 state legal status. For drivers interested in logging data or flashing updates with ease, the included SPADE Autocal V3 device supports multiple trucks and up to 600 VIN slots. It’s a technical solution for everyday use that keeps your truck operating in harmony with your goals.

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

Notes:

  • Great for smoother drivability without added power.
  • Emissions equipment stays fully intact.
  • Good for minor upgrades needing calibration.
  • Ideal for new or cautious tuners.
  • Used in Switch on the Fly for shared driving.
  • Helps diagnose mechanical issues safely.
  • No major horsepower or torque increase.
  • Lower smoke with better fuel control.
  • Not for towing performance or power gains.
  • Pair with TCM tuning for best results.
  • SPADE device and license required.
  • Extra license needed for reused hardware.

 

FITMENT GUIDE

Exact Fitment — Verify Your Year

Year RangesYears
Make
Model
Series
Engine
2012
GM/Chevrolet/GMC
Silverado/Sierra
2500HD/3500HD
6.6L Duramax LML

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