LP5 Duramax: Can It Be Deleted?

They said it couldn’t be done… but can the LP5 Duramax Diesel Engine actually be deleted? EGR deletion has become a popular upgrade among diesel truck owners, offering benefits like improved performance, better fuel economy, and reduced emissions. However, there’s been a lot of confusion lately about whether the LP5 Duramax is immune to such modifications. Rumors suggested that GM had finally made engine deletions a thing of the past—but is that really true? Let’s take a closer look at the powerful LP5 Duramax and explore whether it can be deleted and tuned.

The Introduction of the LP5 Duramax

The 6.6L V-8 Duramax Turbo Diesel Engine was introduced by General Motors in 2017, making its debut in the Chevrolet Silverado and GMC Sierra HD models. It marked a new era for GM’s diesel lineup, following the LML engine and representing a major step forward in design and technology.

What Makes the LP5 a Step Up from Previous Models?

The LP5 builds on the strengths of its predecessor, the LML, while introducing several key improvements. These include:

  • Stronger cylinder block and rotating assembly for increased durability
  • A completely redesigned GM control system with enhanced security features
  • 90% of peak torque available at just 1,550 RPM, improving low-end pulling power
  • An updated camshaft profile for better airflow and efficiency
  • Improved cylinder head design for better combustion and performance
  • Higher cylinder pressure capability for more power output
  • Lower emissions due to advanced engineering and tighter control systems

These enhancements result in a more powerful, efficient, and reliable engine. But the big question still remains: Can the LP5 Duramax be deleted?

Is the LP5 Duramax Delete-Proof?

When the LP5 first launched, many feared that GM had made it impossible to delete or modify. This concern led to a lot of speculation and anxiety among diesel enthusiasts. However, these fears have largely been proven unfounded.

Despite GM’s efforts to secure the engine’s control system, the community quickly found ways around it. In September 2018, HP Tuners became the first to successfully crack the LP5’s ECU, paving the way for tuners and deleters to follow. Since then, multiple companies have developed tools and methods to allow LP5 owners to delete and tune their engines without issues.

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