Introducing our new site Dirty Garage - your source for half-ton parts, off-road, and more.

2020-2022.5 Duramax Peakside HP Tuners Custom Tune Files (PSP-20-22.5-DMAX-HP)

Peakside Performance Part Number: PSP-20-22.5-DMAX-HP-SNG
$1,200.00 CAD

Tune File:
In Stock

* Asterisks indicate a required selection.

Tune Level (Single Tune Only)

Available Power Levels are listed under "Tuning" in the Description

Device Serial #

Please provide your serial number

VIN # *

Vehicle Identification Number

Is your Truck Stock, Modified, or Upgraded?

Please list all modifications on your truck

I already have an Unlocked ECM from HP Tuners *

By checking this box you are confirming that you already have an Unlocked ECM from HP Tuners; This is a required service available from HP Tuners. See Description

I will send my Stock Read & Infolog *


Total w/ Addons:

Fuel Your Build with These Extras

Universal HP Tuners Credits

Part No. HP-Credits-Single
$69.99 CAD

Purchase to earn 1200  Dirty Dollars Learn More

This product ships for free to most Canadian locations! Learn more

Description

Fits

Year Make Model
2020-2022.5 Chevrolet Silverado 1500
2020-2022.5 GM Sierra 1500

 

Awaken your LM2 Duramax with Peakside Performance's long-awaited LM2 Duramax custom tunes. These custom tune files are built specifically for your build and unlock extra fuel economy and power that should have come from the factory.

You will need to purchase HP Tuning credits (set as an add-on) to flash this tune.
The E46 ECM is found in
2020-2022 Chevrolet Silverado 1500/GMC Sierra 1500 3.0L Duramax (LM2) diesel trucks (non-Global B) and requires 6 credits to flash.
The E66 ECM is found in 2022-2022.5 Chevrolet Silverado 1500/GMC Sierra 1500 3.0L Duramax (LM2) diesel trucks (Global B) and requires 6 credits to flash.

These are just the tune files. Click Here for the MPVI3 and tune files

NOTE: These files are meant for unlocked ECMs only.

Part Number: PSP-20-22.5-DMAX-HP

Power Levels

  • +20 Horsepower: Ideal for a mild performance increase with improved fuel economy and smoother driving.
  • +45 Horsepower: A moderate boost, enhancing throttle response while maintaining excellent fuel efficiency.
  • +90 Horsepower: Perfect for those looking for more aggressive performance, with significant gains in power and improved drivability.
  • +110 Horsepower: Offers a noticeable increase in power, ideal for those who need enhanced towing capability and responsiveness.
  • +135 Horsepower: Maximum performance for those seeking the ultimate power boost, optimized fuel economy, and superior throttle control.

Notes

  • A stock ECM/TCM read with HP Tuners is required
  • Please note: These files are meant for unlocked ECMs only. If you need to unlock your ECM still please use one of these links:
    E46: Unlock my ECM
    E66: Unlock my ECM

This Tuning Requires:

  • E46 - 8 Credits Required to Flash
  • E66 - 6 Credits Required to Flash

Peakside Disclaimer:

  • WRONG DEVICE OR VEHICLE INFORMATION PROVIDED AFTER THE TUNE IS WRITTEN WILL RESULT IN A FEE TO REVISE*
  • Peakside Performance is not responsible for damage resulting from any modification performed by, produced by or recommended by us. Buyer assumes all risk for modifications and is responsible for any mechanical failures resulting from these modifications. Completely stock vehicles break every day for no reason.

Questions and Answers

Have a Question?

Be the first to ask a question about this.

Ask a Question