L5P Performance Tuner | 2017-2023 6.6L GM Duramax | Advanced Free Custom Tuning
SAVE $800+ WITH FREE TUNING
This tuning bundle for 2017+ Duramax L5P offers full control without ECM replacement. The CAN Plug simplifies tuning, while HP Tuner “Switch on the Fly” feature lets you change performance levels while driving, making it perfect for towing or performance adjustments.
FREE
$500
Lifetime Tuning Adjustments
FREE
$300
Premium Lifetime Support
FREE
$150
Express Shipping & Handling
FAQ
WHATS INCLUDED?
Everything You Need to Delete Your Emissions System:
1) Ez Lynk Tuner device and all required accessories. Plus Advanced Custom Tuning.
2) 4” Stainless Steel DPF & CAT Delete Pipe
3) Complete EGR Delete Kit
4) Down Pipe
Optional 4" and 5" Stainless Steel Full Exhaust System
Optional Muffler System.
WHO MAKES YOUR TUNES?
All of our tunes are made in-house by top-tier engineers—no outsourcing, no third-party files. These are guys who’ve worked with the big names: Cummins, Power Stroke, and Duramax. They know these systems inside and out, and they build every tune to be clean, reliable, and tailored to your setup.
Why we offer free tuning?
Our tunes are made in-house by top engineers who’ve worked with Cummins, Duramax, and Power Stroke. No third parties, no reused files—just custom, high-quality tuning built for your setup. It doesn’t cost us much to adjust per vehicle, so why charge you? Simple as that.
WHY WE OFFER FREE TUNING?
How are we able to provide tuning for free? The tuning map is created once and then adjusted based on each customer’s needs. For example, if a customer has made modifications in the past or wants something unique, we customize the tune accordingly. This process is the same regardless of where you buy the tune. As a company, we thought, “Why should we charge for something that doesn’t cost us much to produce each time?” It’s 100% possible to offer it for free, so why not do something different? Isn’t that the whole purpose of a company?
If a company is created just to replicate what already exists in the market without making any meaningful changes that benefit customers, why should it even exist? We believe in change, and we believe in providing exceptional value to our customers.
Do I get a single tune or a shift-on-the-fly tune?
The tune we offer with this bundle is a shift-on-the-fly tune. You can switch between five power levels in real time:
Level 1: Stock
Level 2: +50 HP
Level 3: +100 HP
Level 4: +150 HP
Level 5: +200 HP
NO NEED FOR A NEW ECM
Included in this kit is the HP Tuner, which allows you to unlock the ECM on 2017–2023 Chevy/GMC Duramax L5P vehicles. This tuner comes with an ECM unlock tool, enabling you to unlock the ECM directly through the vehicle’s OBD-II port. This eliminates the need to purchase and install a pre-unlocked ECM, reducing costs and simplifying the installation and tuning process.
Don't panic! We will send you detailed instructions. Plus, if you have any questions or get stuck during the installation, we've got you covered. Don't forget you have unlimited access to our professional tuning technicians.
Important Information about the Tune
How does tuning work?
Tuning involves adjusting your vehicle's engine control unit (ECU) to enhance performance, fuel efficiency, or other preferences. It can modify the way your engine performs by changing settings like fuel/air ratios, ignition timing, and turbo pressure.
How We Build the Advanced Custom Tune for You
When you get started with us, we’ll ask for a few details about your truck—like the VIN, make, model, and any unique setups. With that info, our tuning pros get to work, building a custom tune specifically for your truck. We’re talking about maximizing horsepower and torque and ditching those emissions system limits entirely. So, once it’s installed, no more dealing with DEF, no more annoying emissions lights popping up on your dash, and you’ll be able to tow some serious loads with confidence.
And here’s the best part: this whole process is all part of our service. No extra fees and we are the only company doing that.
What does the tuning device do?
The tuning device connects to your vehicle's OBD-II port and communicates with the ECU. It allows you to upload custom settings (or “tunes”) to adjust your engine's performance. These devices also allow for data logging, diagnostics, and monitoring of engine performance.
Fitment
Compatible Truck Years: 2008-2025 6.7L
Models: Compatible with F250, F350, F450 & F550. Including Cab & Chassis models, except 2008-2010 with manual transmission.
NO MORE ECM SWAPS!
Compatible Truck Years: 2008-2025 6.7L
Models: Compatible with F250, F350, F450 & F550. Including Cab & Chassis models, except 2008-2010 with manual transmission.
Horsepower Settings
The Custom Tunes Includes multiple power levels so you can run your truck the way you want to:
Level 1- "Stock" No added HP. Ideal for daily driving and towing.
Level 2: +50HP. Ideal for daily driving and towing.
Level 3: +100HP. Ideal for daily driving and towing.
Level 4: +150HP. Ideal for performance applications.
Level 5: +200HP. Ideal for performance applications.
Except for the 2020-2025 Ford models, it’s 0 HP, just emissions off.
Transmission Tuning
Transmission Tunes are included in all models.
ESSENTIAL INFORMATION ABOUT GDP
Transmission Tunes are included in all models.
THE MOST COMMON QUESTIONS ABOUT THE EZ LYNK
Does the EZ Lynk have its own screen?
No, it doesn’t. You can control it using any Apple or Android device through the Auto Agent 3 app.
How do I get my tune file?
The EZ Lynk operates via cloud software. Once it's connected to your OBD-II port, it recognizes your VIN and displays your available tunes.
Does the tuner need to stay connected?
Once the delete tune is applied, the EZ Lynk can be unplugged. However, it needs to stay plugged in for other features. If you're using the Shift on the Fly feature, only the switch and correct tune file need to be installed.
Can I revert to OEM/Factory settings?
Absolutely! You can revert back to factory settings directly through the tuner whenever needed.
Is it necessary to delete all emissions parts?
The DPF must be deleted, but the tune shuts off all emissions systems. You can unplug sensors and wiring where applicable. While EGR deletes are optional, they're highly recommended for maximum reliability. At least , unplug the EGR sensors.
Easy Installation Support
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ford 6.7L Powerstroke F250, F350, F450
The kits will fit all PICK-UP trims, cab and box lengths and will NOT fit the Cab & Chassis trucks
Important!!
2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ford 6.7L Powerstroke F250, F350, F450
The kits will fit all PICK-UP trims, cab and box lengths and will NOT fit the Cab & Chassis trucks
Essential Information About the GDP COMMANDER Tuner
With the shift-on-the-fly cable included in the bundle, you'll be able to switch between 5 power levels in real time.
EZ Lynk Power Settings:
Level 1- "Stock" No added HP. Ideal for daily driving and towing.
Level 2: +50HP. Ideal for daily driving and towing.
Level 3: +100HP. Ideal for daily driving and towing.
Level 4: +150HP. Ideal for performance applications.
Level 5: +200HP. Ideal for performance applications.
Important:
This is just what most customers want. If you’re looking for something different, just let us know on the form we send after your order—we’ll make it happen.
Your Vehicle Information
For these bundles, you will have a form to fill out once you receive your tuner. Installation instructions + form instructions will be emailed to you post purchase.
How long does it take to link the tune on my EZ Lynk?
The tunes we create for EZ Lynk is a custom tunes.
After your purchase, you will receive a form that you have to fill out with the necessary info of your truck, like VIN, make, and year. This way, we can preload your custom tune on the device so you receive it already preloaded. You just have to plug it in, and you’re all set.
Shipping Time
We process and ship all orders within 1-2 business days to all U.S. states. Once shipped, delivery typically takes 5-8 business days, depending on your location.
You will receive a confirmation email with a tracking number once your order has been dispatched. Please note that delivery times may vary slightly due to carrier schedules or external factors beyond our control.
WHY DIESEL PATRIOTS
FREE CUSTOM TUNING
You get clean custom tunes for free - built for work and daily driving.
REAL SAVINGS
Eliminate thousands in long-term maintenance costs. One bundle, zero future headaches.
PATRIOT-POWERED
Built for Americans who love their trucks and know what real performance feels like.
SAVE UP TO $25,000
JUST BY DELETING YOUR EMISSIONS SYSTEM
Owning a diesel truck shouldn’t mean getting slammed with costs every year:
-$5,000 USD
SCR FAILURE
-$300 USD
DPF CLEANING
-$4,000 USD
DPF FAILURE
-$300 USD
EGR
-$5,000 USD
SCR FAILURE
-$1,500 USD
DEF SENSORS
-$5,000 USD
DEF FLUID
-$5,000 USD
DEF FLUID
AFTER DELETING YOUR TRUCK:
+$25,000 USD
ZERO EMISSIONS MAINTENANCE
REAL REVIEWS
FROM REAL DIESEL DRIVERS
