Description 

Fits  

Year	Make	Model
2001-2004	Chevrolet/GMC	Silverado/Sierra 2500HD/3500

 

Gain flexibility and control over your 2001–2010 GM Duramax with the DSP5 tune files from Peakside Performance. These tunes allow you to adjust the truck’s power output on the fly to match your current needs. Ramp up the power when your truck is empty for fun driving, or reduce it when towing a trailer to minimize stress on the drivetrain. Perfect for drivers who want a versatile, performance-focused upgrade without having to manage multiple separate files.

This is the tune files only. Click here for the device.

Part Number: PSP-1-10-DMAX-EFI-SOTF

Features 

• DSP5 tune files for adjustable on-the-fly power
• Compatible with 2001–2010 GM Duramax trucks
• Professionally calibrated using EFI Live
• Increase or decrease horsepower depending on load or conditions
• Optimized for stock or modified setups
• Improves power, torque, efficiency, and drivability 
• Ideal for towing, daily driving, or recreational performance

Tune Levels 

• Stock Modified
• Level 1 25HP Tow
• Level 2 45HP Economy
• Level 3 75HP Street 
• Level 4 90HP Performance
• Level 5 120HP Race 

Notes 

• Higher Power levels can be written with the proper supporting modifications. Please state the HP level and the supporting modifications.