Add to cart product

VIEW CART

2020-2023 Duramax L5P Page 3 - DIESELR Corp. Skip to content

MILITARY & FIRST RESPONDER DISCOUNT

FOR DIESELR APPAREL GO HERE

Country/region

Country/region

Home
Powerstroke
- 1996-2002 Powerstroke 7.3L
  
  1996-2002 Powerstroke 7.3L Exhaust
- 2003-2007 Powerstroke 6.0L
- 2007.5-2010 Powerstroke 6.4L
- 2011-2016 Powerstroke 6.7L
- 2017-2019 Powerstroke 6.7L
- 2020-2022 Powerstroke 6.7L
Duramax
Cummins
Hardware

Country/region

Country/region

Twitter
Facebook
Pinterest
Instagram
TikTok
YouTube

Home
Powerstroke
- 1996-2002 Powerstroke 7.3L
  
  1996-2002 Powerstroke 7.3L Exhaust
- 2003-2007 Powerstroke 6.0L
- 2007.5-2010 Powerstroke 6.4L
- 2011-2016 Powerstroke 6.7L
- 2017-2019 Powerstroke 6.7L
- 2020-2022 Powerstroke 6.7L
Duramax
Cummins
Hardware

Search

Item added to your cart

View cart

Access Denied

IMPORTANT! If you’re a store owner, please make sure you have Customer accounts enabled in your Store Admin, as you have customer based locks set up with EasyLockdown app. Enable Customer Accounts

DIESELR Corp.
Collections
2020-2023 Duramax L5P

Collection: 2020-2023 Duramax L5P

Sort by:

146 products

Filter:

Quick Filter (0)

Quick Filter

All In One Kits (2 products)
Tune Files (12 products)
Tuner With Tunes (3 products)
Exhaust Systems (7 products)
EGR Upgrade Kit (3 products)

All In One Kits (2 products)
Tune Files (12 products)
Tuner With Tunes (3 products)
Exhaust Systems (7 products)
EGR Upgrade Kit (3 products)

Product type (0)

Product type

Air Filteration (4 products)
Bundle (2 products)
Cables (8 products)
CatchCan (3 products)
CCV Upgrade Kit (1 product)
Chevy/GMC Diesel (2 products)
Cold Air Intake (1 product)
Cooler Upgrade Kit (1 product)
Diesel (5 products)
DIESEL PERFORMANCE (14 products)
EGR Upgrade (3 products)
Exhaust System (7 products)
Fuel (2 products)
Fuel Additives (1 product)
Fuel Injector (4 products)
Fuel System Upgrades (2 products)
Fuel Tank Sump (1 product)
GDP Licenses (1 product)
GDP Tune Files (4 products)
Gift Cards (1 product)
Intake (3 products)
Intake Kits (1 product)
Licenses (1 product)
Lubricants (5 products)
Motor Vehicle Fuel Systems (10 products)
Motor Vehicle Parts (4 products)
Muffler (3 products)
Oil System Cleaning Kit (1 product)
Steering Gears (2 products)
Switches (3 products)
Tune Files (10 products)
Tuning Bundle (5 products)
Tuning Devices (4 products)
Turbocharger (7 products)
Turbocharger Down Pipe (1 product)
Vehicle Parts & Accessories (1 product)
TCM Tune File (3 products)
Unlocked ECM (2 products)
Unlocked TCM (1 product)

Air Filteration (4 products)
Bundle (2 products)
Cables (8 products)
CatchCan (3 products)
CCV Upgrade Kit (1 product)
Chevy/GMC Diesel (2 products)
Cold Air Intake (1 product)
Cooler Upgrade Kit (1 product)
Diesel (5 products)
DIESEL PERFORMANCE (14 products)
EGR Upgrade (3 products)
Exhaust System (7 products)
Fuel (2 products)
Fuel Additives (1 product)
Fuel Injector (4 products)
Fuel System Upgrades (2 products)
Fuel Tank Sump (1 product)
GDP Licenses (1 product)
GDP Tune Files (4 products)
Gift Cards (1 product)
Intake (3 products)
Intake Kits (1 product)
Licenses (1 product)
Lubricants (5 products)
Motor Vehicle Fuel Systems (10 products)
Motor Vehicle Parts (4 products)
Muffler (3 products)
Oil System Cleaning Kit (1 product)
Steering Gears (2 products)
Switches (3 products)
Tune Files (10 products)
Tuning Bundle (5 products)
Tuning Devices (4 products)
Turbocharger (7 products)
Turbocharger Down Pipe (1 product)
Vehicle Parts & Accessories (1 product)
TCM Tune File (3 products)
Unlocked ECM (2 products)
Unlocked TCM (1 product)

Tuner (0)

Tuner

Commander (6 products)
EZ Lynk (4 products)
MPVi3 (12 products)

Commander (6 products)
EZ Lynk (4 products)
MPVi3 (12 products)

Make (0)

Make

6.7L Ford Powerstroke (2 products)
6.6L L5P GM Duramax (47 products)
Universal Fitment (3 products)
GM Duramax Models (2 products)
Ford Powerstroke Models (2 products)

6.7L Ford Powerstroke (2 products)
6.6L L5P GM Duramax (47 products)
Universal Fitment (3 products)
GM Duramax Models (2 products)
Ford Powerstroke Models (2 products)

Brand (0)

Brand

Calibrated Power (7 products)
Chaos Custom Tuning (2 products)
DieselR Parts (7 products)
DIESELR Tuning (9 products)
Dynomite Diesel (5 products)
Edge Products (3 products)
FASS EGR Solutions (1 product)
FASS Fuel Systems (44 products)
GDP (32 products)
HP Tuners (3 products)
Katz Azz (5 products)
No Limit Fabrication (10 products)
Polar Diesel (8 products)
RedHead Steering Gears (2 products)
S&B (5 products)
S&S Diesel Motorsport (3 products)

Calibrated Power (7 products)
Chaos Custom Tuning (2 products)
DieselR Parts (7 products)
DIESELR Tuning (9 products)
Dynomite Diesel (5 products)
Edge Products (3 products)
FASS EGR Solutions (1 product)
FASS Fuel Systems (44 products)
GDP (32 products)
HP Tuners (3 products)
Katz Azz (5 products)
No Limit Fabrication (10 products)
Polar Diesel (8 products)
RedHead Steering Gears (2 products)
S&B (5 products)
S&S Diesel Motorsport (3 products)

Price

The highest price is $12,805.71

$

From

To

Availability (0)

Availability

In stock (135 products)
Out of stock (13 products)

In stock (135 products)
Out of stock (13 products)

Sort by:

Filter and sort Filter

Filter and sort

Filter

146 products

Quick Filter

All In One Kits (2 products)
Tune Files (12 products)
Tuner With Tunes (3 products)
Exhaust Systems (7 products)
EGR Upgrade Kit (3 products)

Clear

Product type

Air Filteration (4 products)
Bundle (2 products)
Cables (8 products)
CatchCan (3 products)
CCV Upgrade Kit (1 products)
Chevy/GMC Diesel (2 products)
Cold Air Intake (1 products)
Cooler Upgrade Kit (1 products)
Diesel (5 products)
DIESEL PERFORMANCE (14 products)
EGR Upgrade (3 products)
Exhaust System (7 products)
Fuel (2 products)
Fuel Additives (1 products)
Fuel Injector (4 products)
Fuel System Upgrades (2 products)
Fuel Tank Sump (1 products)
GDP Licenses (1 products)
GDP Tune Files (4 products)
Gift Cards (1 products)
Intake (3 products)
Intake Kits (1 products)
Licenses (1 products)
Lubricants (5 products)
Motor Vehicle Fuel Systems (10 products)
Motor Vehicle Parts (4 products)
Muffler (3 products)
Oil System Cleaning Kit (1 products)
Steering Gears (2 products)
Switches (3 products)
Tune Files (10 products)
Tuning Bundle (5 products)
Tuning Devices (4 products)
Turbocharger (7 products)
Turbocharger Down Pipe (1 products)
Vehicle Parts & Accessories (1 products)
TCM Tune File (3 products)
Unlocked ECM (2 products)
Unlocked TCM (1 products)

Clear

Tuner

Commander (6 products)
EZ Lynk (4 products)
MPVi3 (12 products)

Clear

Make

6.7L Ford Powerstroke (2 products)
6.6L L5P GM Duramax (47 products)
Universal Fitment (3 products)
GM Duramax Models (2 products)
Ford Powerstroke Models (2 products)

Clear

Brand

Calibrated Power (7 products)
Chaos Custom Tuning (2 products)
DieselR Parts (7 products)
DIESELR Tuning (9 products)
Dynomite Diesel (5 products)
Edge Products (3 products)
FASS EGR Solutions (1 products)
FASS Fuel Systems (44 products)
GDP (32 products)
HP Tuners (3 products)
Katz Azz (5 products)
No Limit Fabrication (10 products)
Polar Diesel (8 products)
RedHead Steering Gears (2 products)
S&B (5 products)
S&S Diesel Motorsport (3 products)

Clear

Price

The highest price is $12,805.71

$

From

$

To

Clear

Availability

In stock (135 products)
Out of stock (13 products)

Clear

Sort by:

Remove all

146 products

SOTF Harness (Universal)

Sold out

SOTF Harness (Universal)

Vendor:
GDP

SKU:10025-HRN

Regular price $15.00 USD

Regular price ~~$0.00 USD~~ Sale Price $15.00 USD
Unit price per

Sold out
GDP Commander Support Pack - Single (17-23 GM L5P Duramax)

GDP Commander Support Pack - Single (17-23 GM L5P Duramax)

Vendor:
GDP

SKU:GDPCOMMSP-DS

Regular price $900.00 USD

Regular price Sale Price $900.00 USD
Unit price per
Pre-Filter - For All GDP Intakes

Pre-Filter - For All GDP Intakes

Vendor:
GDP

SKU:GDP26000

Regular price $34.99 USD

Regular price Sale Price $34.99 USD
Unit price per
Edge EAS Pyrometer Probe with Starter Kit

Edge EAS Pyrometer Probe with Starter Kit

Vendor:
Edge Products

SKU:98620

Regular price $164.95 USD

Regular price ~~$0.00 USD~~ Sale Price $164.95 USD
Unit price per
DIESELR Commander T93 Transmission Tune File (2020+ Duramax L5P 6.6L)

DIESELR Commander T93 Transmission Tune File (2020+ Duramax L5P 6.6L)

Vendor:
DIESELR Tuning

SKU:DSLRT-200641

Regular price $300.00 USD

Regular price ~~$0.00 USD~~ Sale Price $300.00 USD
Unit price per
GDP Commander L5P two-wire unlock cable (required for flashing) (2017-2023 Duramax L5P)

GDP Commander L5P two-wire unlock cable (required for flashing) (2017-2023 Duramax L5P)

Vendor:
GDP

SKU:GDPCOMM9000

Regular price $25.00 USD

Regular price Sale Price $25.00 USD
Unit price per
GDP MPVI3 UPGRADE from "Single tune" TO "Multi-tune or SOTF" (17-23 GM Duramax L5P 2500/3500)

GDP MPVI3 UPGRADE from "Single tune" TO "Multi-tune or SOTF" (17-23 GM Duramax L5P 2500/3500)

Vendor:
GDP

SKU:GDP403UP

Regular price $500.00 USD

Regular price Sale Price $500.00 USD
Unit price per
GDP Commander Support Pack - SOTF (17-23 GM L5P Duramax)

GDP Commander Support Pack - SOTF (17-23 GM L5P Duramax)

Vendor:
GDP

SKU:GDPCOMMSP-D

Regular price $1,300.00 USD

Regular price Sale Price $1,300.00 USD
Unit price per
GDP Commander L5P E41 ECM harness (2017-2023 Duramax L5P)

GDP Commander L5P E41 ECM harness (2017-2023 Duramax L5P)

Vendor:
GDP

SKU:GDPE41HRN

Regular price $325.00 USD

Regular price Sale Price $325.00 USD
Unit price per
ProMAX Performance Oil Additive

NEW

ProMAX Performance Oil Additive

Vendor:
Katz Azz

SKU:202180

Regular price From $35.71 USD

Regular price Sale Price From $35.71 USD
Unit price per
FASS - GM 6.6L Titanium Signature Series Diesel Fuel Lift Pump 2001-2024

FASS - GM 6.6L Titanium Signature Series Diesel Fuel Lift Pump 2001-2024

Vendor:
FASS Fuel Systems

SKU:FAS TSC10100G

Regular price From $689.00 USD

Regular price Sale Price From $689.00 USD
Unit price per
Polar Diesel Octagon Exhaust Tip

Polar Diesel Octagon Exhaust Tip

Vendor:
Polar Diesel

SKU:PD-5-6900310

Regular price From $218.52 USD

Regular price Sale Price From $218.52 USD
Unit price per
Venturi

Venturi

Vendor:
No Limit Fabrication

SKU:VENTURI

Regular price $129.00 USD

Regular price Sale Price $129.00 USD
Unit price per
Universal 5" Polar Muffler

Universal 5" Polar Muffler

Vendor:
Polar Diesel

SKU:PD-4-69001500

Regular price $133.33 USD

Regular price Sale Price $133.33 USD
Unit price per
GDP MPVI3 Stock File (Ford/GM/Ram/Jeep)

GDP MPVI3 Stock File (Ford/GM/Ram/Jeep)

Vendor:
GDP

SKU:GDPHPSTOCK

Regular price $100.00 USD

Regular price Sale Price $100.00 USD
Unit price per
Chaos Custom Tuning MPVI3 Transmission Tune File (2020+ Duramax L5P 6.6L)

Chaos Custom Tuning MPVI3 Transmission Tune File (2020+ Duramax L5P 6.6L)

Vendor:
Chaos Custom Tuning

SKU:CCT-200241

Regular price $300.00 USD

Regular price ~~$0.00 USD~~ Sale Price $300.00 USD
Unit price per
DIESELR CCV Upgrade Kit (2017-2023 Duramax 6.6L L5P)

NEW

DIESELR CCV Upgrade Kit (2017-2023 Duramax 6.6L L5P)

Vendor:
DieselR Parts

SKU:215-02001

Regular price $310.00 USD

Regular price Sale Price $310.00 USD
Unit price per

Free Shipping
FASS - Diesel Fuel Sump Kit

FASS - Diesel Fuel Sump Kit

Vendor:
FASS Fuel Systems

SKU:FAS SK5501

Regular price $169.00 USD

Regular price Sale Price $169.00 USD
Unit price per
DIESELR EZ Lynk Transmission Tune File T93 (2020-2023 6.6L L5P Duramax)

DIESELR EZ Lynk Transmission Tune File T93 (2020-2023 6.6L L5P Duramax)

Vendor:
DIESELR Tuning

SKU:200-01401

Regular price $300.00 USD

Regular price ~~$0.00 USD~~ Sale Price $300.00 USD
Unit price per
Superlube Aerosol Spray

NEW

Superlube Aerosol Spray

Vendor:
Katz Azz

SKU:809454

Regular price From $12.85 USD

Regular price Sale Price From $12.85 USD
Unit price per

1
2
3
4
5
…
8

Invalid password

Enter

Support

Dealer Signup
Software Downloads
Financing
Contact Us
Core Returns
Sponsorship Signup
Report an Issue / Suggest a Feature

Legal Stuff

Return & Refund Policy
Shipping Policy
Terms of Service
Privacy Policy
DNSMPI

More from DIESELR

DIESELR Merch/Giveaways
GDP Tuning
Turn 'Em & Burn 'Em

Who We Are

DIESELR builds tuning solutions for serious truck owners. From industry-leading ECM tuning files to performance-driven diesel upgrades, we create tested, proven, and reliable solutions that deliver real power and efficiency. No fluff—just the best tuning and parts for your diesel.

Subscribe to our emails

Email

Facebook
Instagram
YouTube
TikTok
Twitter
Pinterest

Country/region

Country/region

Payment methods

© 2025, DIESELR Corp.

Refund policy
Privacy policy
Terms of service
Shipping policy
Contact information

Choosing a selection results in a full page refresh.
Opens in a new window.