2024 - 2025 L5P Duramax 2500 3500 | Pickup only | HP Tuners

The E42 ECM has Global B security and requires to be sent into HP Tuners to be unlocked*

Due to the complex nature of these tunes. a stock file must be sent to us after unlocked. Allow 5-7 business days to get a file in return. You may put the ecm back into the truck and drive around like normal until modified tune file is received

Requires MPVI3 or RTD4 to flash

2024–2025 Chevy Silverado / GMC Sierra 2500 3500 (L5P)

Introducing the HP Tuners for 2024-2025 L5P Duramax 2500 3500 | Pickup! Get ready to take your truck's performance and reliability to the next level with this cutting-edge tuning solution designed specifically for the L5P Duramax engine.

With HP Tuners, you can unlock the true potential of your truck by optimizing its performance and achieving remarkable results. Experience an increase in mileage, horsepower, and torque, giving you the power and efficiency you need for any task.

Say goodbye to stock power limitations and hello to enhanced performance. With HP Tuners, you can access a range of tune power levels, allowing you to customize your truck's performance to suit your needs. From heavy towing to light towing, and even switchable tuning power levels, you can easily adjust your truck's performance for maximum power and efficiency.

Experience the power of customization with HP Tuners. Choose from power levels ranging from 0 to 200HP, giving you complete control over your truck's performance. Whether you're looking for a mild boost or a significant power increase, HP Tuners has you covered.

The Benefits of Tuning:

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

Tuning Power Levels:

• 30HP (Heavy Tow)
• 80HP (Light Tow - 12K Lbs and under)
• 120HP
• 160HP
• 200HP

The Benefits of Transmission Tuning:

• Earlier Converter Lockup
• Increased Line Pressure
• New Shift Strategy to Keep from Sluggish Shifting
• Earlier Downshift with Less Throttle Input
• Torque Management

IMPORTANT: 

• All vehicles and transmissions require a Windows based computer for the flashing of your vehicle or transmission with your tuning option.
• Vehicle tuning requires an unlocked ECM for flashing of tuning.
• Transmission tuning requires a TCM Exchange. 
• ECM or TCM tuning require an HP MPVI Device + Licensing for deployment, MPVI must be an MPVI2+ w/Pro Feature Set or an MPVI3 device.
• For ECM or TCM Exchange core refunds the core(s) must be received and inspected before refunded.  Cores with bent pins, missing pins or broken connector will not be accepted and refundable core fee(s) will be forfeited.  
• ECM upgrade/unlock kit requires an MPVI2+ w/Pro Feature Set or an MPVI3 device.