
2020-2022.5 Duramax Peakside HP Tuners Custom Tune Files (PSP-20-22.5-DMAX-HP)
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
- 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.
Original: $667.02
-65%$667.02
$233.46Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
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
- 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.















