Tuner DT1150010004029 Street Tune Only for EFI Live Spade | 2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

MANUFACTURER: DURAMAX TUNER

Street Tune Only for EFI Live Spade

Fitment: 2012 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML
SKU: DMTDT1150010004029
Price
$300
Ships From Manufacturer in 3-5Ā Days
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Features:

  • +110 RWHP and +198 ft-lbs torque
  • Smooth and responsive throttle feel
  • No dead pedal feeling at low speeds
  • Fast acceleration and improved driveability
  • Retains full factory turbo brake function
  • Emissions intact and 49 State Legal
  • Ideal for daily drivers or weekend use
  • Not for towing heavy loads frequently
  • Custom tuning with 100+ calibration changes
  • SPADE EFI Live AutoCal v3 required
  • No wire cutting or sensor splicing needed
  • Transmission tuning highly recommended

Built For Daily Driving With Power You Can Feel

The Street Tune is the kind of upgrade you notice the moment you roll out of the driveway. Throttle response sharpens up right away, making the truck feel lighter and more eager without losing that factory smoothness. It adds a strong bump in horsepower and torque, but it still feels controlled and refined during normal driving. Highway passing becomes effortless, and around-town driving feels more connected and responsive. This tune is perfect if you drive your truck often and miss the punch that modern diesels sometimes hold back. It keeps emissions equipment intact, so you are not trading power for peace of mind. If you want a truck that feels alive again without turning it into a dedicated tow rig, this tune hits the sweet spot.

Calibrated Power Designed To Protect Reliability

From a technical standpoint, this Street Tune focuses on balanced performance rather than outright aggression. The calibration includes over 100 precise changes that refine fueling, throttle mapping, and torque delivery. Power gains of up to 110 RWHP and 198 ft-lbs are achieved while maintaining OEM-level reliability when used as intended. The smooth power curve helps reduce stress on drivetrain components and keeps exhaust temperatures manageable. Factory turbo braking remains fully functional, which is important for everyday control and light towing situations. This tune does require EFI Live AutoCal v3 hardware and works best when paired with transmission tuning. The result is a cleaner, more efficient calibration that delivers real performance without shortcuts.

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

Notes:

  • Street Tune is 49 State Legal; not CARB-compliant.
  • Emissions equipment remains fully intact and operational.
  • Too much power for heavy towing without proper monitoring.
  • Excessive abuse can raise temps and cause failures.
  • Recommended for trucks towing under 8,000 lbs occasionally.
  • Ideal for drivers who want more power for daily use.
  • Not suitable for frequent or heavy towing applications.
  • Requires EFI Live AutoCal v3 hardware to install tune.
  • Transmission tuning highly recommended for best results.
  • May not be ideal for cautious or first-time tune users.
  • Additional license needed if reusing hardware from another truck.
  • Designed to work without splicing or modifying wiring.

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

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