2017 - 2023 L5P Duramax 2500 3500 | Pickup and Cab Chassis | HP Tuners

$700.00 
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***Most E41 L5P Duramax no longer require an e41 unlock kit. Customers can now upgrade their E41 ECM directly through the OBDII port—no physical upgrade kit, no controller removal, and no shipping required.

2018–2023 Chevy Silverado / GMC Sierra 2500–3500 (L5P)
2019–2023 Chevy Silverado / GMC Sierra 4500–6500 (L5D)

Note: 2017 Model years and some 2018 still require the kit.****

  • Increase in Mileage
  • Increase in Horsepower
  • Increase in Torque

Compatible with:

  • 2017 - 2023 L5P Duramax  2500 3500
    • Pickup and Cab Chassis trucks

Tune Power Levels

  • Stock Power
  • 30HP (Heavy Tow)
  • 80HP (Can tow 12k Lbs and under)
  • 120HP
  • 150HP
  • 180HP 
  • 200HP 

Switchable Tuning Power Levels

  • 0-200HP
    • 0HP
    • 30HP
    • 75HP
    • 120HP
    • 150HP
    • 200HP