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Cummins tuning, built in-house

Us vs. them

  • Best pricing

    Diesel Patriots
    Best pricing. In-house tuning keeps our costs down.
    Other providers
    Outrageous prices. Tunes bought from third parties.
  • Decades of experience

    Diesel Patriots
    Engineers with decades of experience, including work with Cummins.
    Other providers
    They have no clue who makes the tunes—they’re not the ones making them.
  • Full support

    Diesel Patriots
    We stay with you until your truck is back on the road.
    Other providers
    Ghosted after placing your order.
  • Free changes

    Diesel Patriots
    Different tunes. Free adjustments.
    Other providers
    Extra charges may apply.

For custom tuning & tuning bundles. Other providers’ terms vary.

Know your kit

Questions, answered.

Need a hand? Call 877-355-3378

Fitment & ordering

WAHTS INCLUDED

Everything You Need to Delete Your Emissions System:

Ez Lynk Bundle:

1) Ez Lynk device –with switch cables and Bypass cable.

2) Custom tuning file – fully personalized to your vehicle and setup.

3) 4” Stainless Steel DPF & CAT Delete Pipe

4) Complete EGR Delete Kit – everything needed for full EGR removal.
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Optional 4” and 5” Stainless Steel Full Exhaust Systems – available as an upgrade

Optional Muffler System – can be added if you are looking to keep your truck quiet.

Fitment

This delete kit fits the following 2019-2021 Ram 6.7 Cummins trucks:
2019 Ram 2500 - 6.7L Cummins Diesel
2019 Ram 3500 - 6.7L Cummins Diesel
2020 Ram 2500 - 6.7L Cummins Diesel
2020 Ram 3500 - 6.7L Cummins Diesel
2021 Ram 2500 - 6.7L Cummins Diesel
2021 Ram 3500 - 6.7L Cummins Diesel
Compatible with all pickup trims, cab configurations, and bed lengths. Does NOT fit Cab & Chassis trucks.

YOUR VEHICLE INFORMATION

The EZ Lynk come with custom delete 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.

Tuning & installation

Who Makes YOUR TUNES?

Our tunes are made in-house by people who have worked with Cummins. We build and support the tuning for your truck ourselves.

Why we offer free tuning?

We build our tunes in-house, so we control the tuning costs. Different tunes and tuning adjustments are free with your tuning purchase.

Important Information about the tune

How does tuning work?

Our tunes are built for real truck owners—people who tow, haul, or drive their rig every day. They're clean, reliable, and built in-house by pros who know what they're doing. No racing nonsense, just solid performance and better fuel economy.

For the 2019-2021 Ram 6.7 Cummins, this means a tune built around eliminating DPF regen cycles, EGR soot buildup, and DEF system faults - including the P20EE SCR efficiency codes and false derate events that are a well-documented complaint on 2019-2021 Ram 2500 and 3500 trucks. Your tune arrives preloaded on the EZ Lynk device before it ships.


You give us the basics (VIN, make, model, and any mods), and we build a custom tune that fits your truck like a glove. Once it’s in, say goodbye to DEF headaches and warning lights. You’ll be ready to tow with confidence—and it’s all included, no extra fees.


What Does the Device Do?

The tuner plugs into your OBD-II port and loads your custom tune. It also lets you check performance, run diagnostics, and keep your truck dialed in.

Transmission Tuning

Transmission tuning for the 68 RFE is included. This tune optimizes shift points and line pressure specifically for the 68 RFE automatic fitted to your 2019-2021 Ram 2500 or 3500, reducing heat buildup under sustained towing and improving long-term transmission reliability. Better fuel economy under towing and highway conditions is also a consistent outcome.

EZ LYNK



1.⁠ ⁠MONITORING

EZ Lynk lets you use your smartphone as a digital gauge display through the free AutoAgent app. Keep an eye on important engine and transmission data right from your phone while you're driving.


2.⁠ ⁠INSTALLATION & POWER LEVELS

EZ Lynk comes ready to go with your tunes already loaded. Just plug it into your truck's OBD-II port, connect through the AutoAgent app, and you're ready to tune. It also includes 5 shift-on-the-fly power levels.


3.⁠ ⁠RETURN TO STOCK

Need to put your truck back to stock? EZ Lynk lets you restore the factory calibration directly from the device whenever you need to.


HORSEPOWER SETTINGS (SOTF)

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 fuel economy, reliability, towing, and daily driving.

Level 3: +100HP – Ideal for towing and enthusiastic driving.

Level 4: +150HP – Ideal for performance applications. Additional truck modifications may be required.

Level 5: +200HP – Maximum performance setting. Recommended for modified trucks only.


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.

HOW HARD IS IT TO INSTALL THE KIT?

The kit is very easy to install. It usually takes about 4 to 8 hours, depending on how handy you are, but most of our customers do it themselves without any problems.

We include clear, step-by-step instructions and provide all the support you need. If you have any questions during the installation, our team responds quickly to help you get the job done.

The EZ Lynk tuning device takes only about 4 minutes to install since it's completely plug-and-play.

Why Diesel Patriots

Free custom tuning

Worth $900, programmed for your VIN and included with your full bundle.

In-house value

We make our own tunes, keeping control of quality and cost.

Patriot-powered

Built around hardworking truck owners who expect power, durability and reliability.

More truck. Fewer repair bills.

See how emission-system costs can add up.

Illustrative costs · USD

DPF cleaning
$300
DPF failure
$4,000
EGR
$300
SCR failure
$5,000
DEF sensors
$1,500
DEF fluid
$5,000
Total of the examples shown $16,100

What our customers say

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