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GM Duramax Tuners

15 products

Easy level of install difficulty

The level of installation is EASY

Mini Maxx V2 Tuner

Multiple Engine Fitments

ⓘ

Compatible makes: GM, Ford, Dodge Ram

Compatible engines: Powerstroke, Duramax, Cummins 6.4L, 6.6L, 6.7L

Mini Maxx Tuner Mini Maxx Tuner - V2 | DPF / DEF / EGR Delete Tuner
$995.90
From $699.00

Multi-fit

Tuner

Easy level of install difficulty

The level of installation is EASY

Mini Maxx V1 Tuner

Multiple Engine Fitments

ⓘ

Compatible makes: Ford, GM, Dodge Ram

Compatible engines: Powerstroke, Duramax, Cummins 5.9L, 6.7L, 6.4L, 6.0L, LML, LMM

Tuner Depot Tuner H&S PERFORMANCE Mini Maxx V1 DPF Delete Tuner
$764.79
From $489.00

Multi-fit

Tuner

Medium level of install difficulty

The level of installation is MEDIUM

EFI Live AutoCal V3

GM Duramax LB7, LLY, LBZ, LMM, LML

(2001-2016)

Black Bandit Tuner GM Duramax 6.6L EFILive AutoCal V3 DPF Delete Tuner (2001-2016)
$999.99
From $879.99

Duramax

Tuner

Easy level of install difficulty

The level of installation is EASY

EZ LYNK Tune Package

GM Duramax LML, L5P, LMM

(2007.5-2023)

EZ Lynk Tuner for GM Duramax EZ LYNK LMM/LML/L5P Tune Package (2007.5-2023)
From $650.00

Duramax

Tuner

Medium level of install difficulty

The level of installation is MEDIUM

LWN Power Tuning Package

GM Duramax LWN

(2016-2022)

Black Bandit Power Tunes Tuner 2016 / Yes add an OBD2 / Single Calibration: Stock Optimized (+0 HP) GM Duramax LWN 2.8L - OBD2 Power Tuning Package (2016-2022)

New Product

From $650.00

Duramax

Tuner

Medium level of install difficulty

The level of installation is HARD

OBD2 Flash Tuning Interface

Universal fitment

Tuner Depot Tunes Tuner OBD2 Flash Tuning Interface
$399.99

Universal

Tuner

Easy level of install difficulty

The level of installation is EASY

Tuning Credits

Universal fitment

Universal

Tuner Depot Tuning Credit GM Duramax – Tuning Credits (2017-2023)
$52.25

Universal

Tuning Credit

Easy level of install difficulty

The level of installation is EASY

SOTF Tune Package

GM Duramax L5P

(2017-2025)

Tuner Depot GM Duramax L5P – SOTF Tune Package (2017-2023)
From $1,375.00

Duramax

Tuning

Easy level of install difficulty

The level of installation is EASY

Unlocked TCM

GM Duramax L5P, LWN, LM2

(2017 - 2022)

Tuner Depot Tuner GM Duramax L5P – Unlocked TCM (2017-2023)
$399.99

Duramax

Tuner

Medium level of install difficulty

The level of installation is MEDIUM

LM2 Power Tuning Package

GM Duramax 3.0L, LM2

(2020-2022)

Black Bandit Power Tunes Tuner Yes add an OBD2 / Stock Optimized (+0HP) GM Duramax LM2 3.0L - OBD2 Power Tuning Package (2020-2022)

New Product

From $999.99

Duramax

Tuner

Easy level of install difficulty

The level of installation is EASY

Unlocked E41 ECM

GM Duramax L5P

(2017 - 2023)

Tuner Depot Engine Control Module GM Duramax L5P - Unlocked E41 ECM (2017-2023)
$1,649.99

Duramax

ECM

Easy level of install difficulty

The level of installation is EASY

TCM Tune

GM Duramax L5P

(2017 - 2023)

Tuner Depot Tuning Credit GM Duramax L5P – TCM Tune (2017-2023)
$329.99

Duramax

Tuning

Medium level of install difficulty

The level of installation is MEDIUM

E46 Upgrade & Unlock

GM Duramax 3.0L, LM2

(2020-2022)

Tuner Depot Tuning GM Duramax LM2 – ECM E46 Upgrade & Unlock Service (2020-2023)
$550.00

Duramax

Tuning

Medium level of install difficulty

The level of installation is HARD

EFi Autocal Tune Files

GM Duramax LB7, LLY, LBZ, LMM, LML

(2001-2016)

Tuner Depot Delete Tuning GM Duramax LB7 (2001-2004) EFI Live AutoCal Tune Package for GM Duramax (2001-2016)
From $357.50

Duramax

Tuning

Medium level of install difficulty

The level of installation is MEDIUM

Autocal V3 DPF Delete Tuner – Blank (EFI Live)

Multiple Engine Fitments

ⓘ

Compatible makes: GM, Dodge Ram

Compatible engines: Duramax, Cummins LLY, LB7, LBZ, LMM, LML, L5P, LWN, 6.7L

Black Bandit Tuner Autocal V3 DPF Delete Tuner (Blank)
$659.99
$549.99

Multi-fit

Tuner

Maximize your GM Duramax diesel truck’s performance with industry-leading tuning solutions from TunerDepot. Our collection includes advanced delete tuners, ECM and TCM unlock kits, SOTF (Switch On The Fly) tuning packages, and OBD2 flash tools built for serious diesel owners. We support every Duramax platform—LB7, LLY, LBZ, LMM, LML, LWN, LM2, and L5P—covering model years 2001 through 2023.

Whether you're upgrading a work truck or building an off-road powerhouse, our solutions eliminate restrictive emissions systems like DPF, EGR, and DEF, while delivering calibrated horsepower and torque gains you can feel. Choose from proven platforms like Mini Maxx, EZ Lynk Auto Agent 3, EFI Live, and more—all backed by expert tuning and compatibility support.

Trusted by diesel shops, tuners, and truck owners across North America, TunerDepot is your source for precision-engineered Duramax tuning tools. Every product in this collection is tested, purpose-built, and ready to deliver results.

Frequently Asked Questions

What’s the most reliable tuner for GM Duramax trucks?
For modern Duramax engines, the EZ Lynk Auto Agent 3 or OBD 2 with custom tuning support are the most reliable and up-to-date platforms. For legacy models, EFI Live remains a trusted standard.
Can I legally delete emissions on my Duramax?
Emissions deletes are designed strictly for off-road and competition use. TunerDepot provides solutions intended for non-road going vehicles in jurisdictions where off-road tuning is permitted.
What’s the benefit of unlocking my ECM and TCM?
Unlocking your ECM and TCM allows full access to critical tuning parameters enabling advanced custom calibrations, improved towing performance and full control of your powertrain.
What’s included in a Duramax SOTF Tune Package?
Our SOTF packages include ECM unlocking, multiple calibrated tune levels and a switching interface allowing real-time tuning adjustments while driving.
Which Duramax generations do you support?
TunerDepot supports all GM Duramax generations from 2001 to 2023, including LB7, LLY, LBZ, LMM, LML, LWN, LM2 and L5P.

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