2019-2021 Ram 2500 6.7 Cummins Delete Kit Guide

Hi there, 2019+ Ram 2500 owner. Are you also bothered by the same issue below? If so, keep on reading.

2021 Ram 2500 6.7 with 68RFE. What delete kit do I need or has worked well for you?
Yes or no on transmission tuning?
Truck is mainly driven on the highway, some light towing a couple times a month, and I don’t care about power.
I just need to be able to hop in it and drive across the country without any worries.

---- An Anonymys 2021 ram 2500 owner on Reddit

✅ Short Answer (Direct Recommendation)

For a 2021 Ram 2500 6.7L Cummins with 68RFE, especially one that’s:

Mostly highway driven,
Occasional light towing, and
You don’t care about horsepower,

then a delete kit + proper tuner is absolutely the most reliable way to reduce heat/stress issues and improve long-term drivability, not for power — but for smooth highway reliability and less regen/DEF headaches.

🧩 What Delete Kit Actually Works

You have two solid delete kit options on DPFexhaust that fit 2019–2021 Ram 6.7L:

1. DPF/DEF/EGR Delete + Minimaxx V2 Tuner (2019–2021)

Best choice if you want simple, rugged, reliable tuning with on-the-fly adjustments
Minimaxx V2 includes more safety assist features (boost control, temp monitoring, etc)
Good for highway cruising and towing without power chase
Works great with a stock truck or lightly modified truck

Pros:

Smooth drivability
ETC & exhaust restriction issues reduced
Built-in diagnostics & temp monitoring

Cons:

Slightly higher price than a blank tuner

👉 This is the ideal combination recommended for your highway build.

2. DPF/DEF/EGR Delete + EFI Live Tuner (2013–2021)

Longer established platform with deep custom tuning support
If you want more precision tuning data on highway vs light towing
Usually recommended when your truck may see future mods (intake / injectors / bigger exhaust)

Pros:

Very accurate tuning control
Great long-term tuning ecosystem

Cons:

Requires desktop software + tuning file setup
More “technical” than Minimaxx V2

👉 Good if you or your tuner want deeper control.

🛠️ Should You Tune the Transmission?

Yes, in most cases you should.
Even though you’re not chasing power, the stock 68RFE can sometimes run hotter or degrade clutches under modified airflow and fueling conditions.

Why Transmission Tune Helps (Even Without Power Gains):

Adjusts shift firmness and line pressure for smoother highway shifts
Reduces heat spikes in the 68RFE during long cruise/towing
Prevents unexpected limp behavior that OEM tuning can cause when exhaust systems are altered

So yes, pairing the delete kit with a transmission-aware tune (Minimaxx V2 or EFI Live + appropriate calibrations) is recommended for drive-ability and reliability, not necessarily horsepower.

🧭 Will This Work Well for Your Use Case?

Highway & Light Towing = YES
Since you’re not chasing max HP, the goal should be:

✔ lower backpressure
✔ fewer regen cycles
✔ lower EGT spikes
✔ better shift behavior
✔ cooler highway operation

Both delete kits above — when properly tuned — are proven by real owners to reduce highway heat soak and improve reliability over stock with less chance of limp mode or drivetrain heat issues.

⚠️ Important Compliance Notes

For clarity:

🚫 Delete kits remove emissions components (DPF/DEF/EGR)
📍 This is typically legal for off-road / private land / competition use only
✔ On a strictly highway use case, make sure you understand local emissions laws
✔ If you plan to keep your truck street-legal, consult local authorities before modifying emissions systems

This is standard advice and not legal counsel — emissions laws vary by state/country. Always check local regulations.

🧩 User Reassurance (1–2 extra tips)

On long highway tours, monitoring oil & coolant temps is critical
Minimaxx V2 gives you in-cab gauges & thresholds that help catch issues early
Many users pair the delete kit with a CCV reroute kit to reduce oily deposits, especially on long cruises

👉 Consider adding: CCV Reroute Kit
This keeps the intake clean and turbo happy — which helps longevity even at stock power levels.

🧠 Quick Summary Table

Component	Recommendation	Why
Delete Kit	DPF/DEF/EGR Delete (Minimaxx V2)	Best blend of reliability + ease of use
Tuner	Minimaxx V2 / EFI Live	Reduces limp mode, improves shift behavior
Transmission Tune	Yes	Helps shift quality & heat management
CCV Reroute Kit	Optional, recommended	Keeps intake/turbo cleaner on highway

🏁 Final Take

For a highway-oriented 2021 Ram 6.7L, your best route for worry-free reliability is:

DPF/DEF/EGR Delete + Proper Tuning (Minimaxx V2 or EFI Live)
→ Transmission tune recommended
→ CCV reroute beneficial
→ Low heat, low regen headaches

This combination has been consistently reported by real owners as the least problematic setup for long trips and light towing, without chasing peak horsepower.

Let me know if you want a setup checklist, recommended tune profiles, or pre-flight monitoring guide you can use before your next cross-country trip.

❓FAQs

Q: What is included in 2019-2021 Cummins All-in-One Delete Kit?
Our kit comes with everything you need to upgrade your 2019-2021 6.7L Cummins. Inside, you'll find the Mini Maxx V2 Delete Tuner / EFI LIVE Tuner, an EGR Delete Kit, and a DPF Delete Race Pipe. Each component is designed to work seamlessly together, giving your truck a performance boost while simplifying installation.

Q: Will the Mini Maxx V2 Tuner delete kit work with my 2019-2021 Ram if my PCM starts with a letter?
No, unfortunately, the Mini Maxx V2 Delete Tuner only supports PCM part numbers that start with a number. If your PCM starts with a letter, the tuner won’t be compatible. Make sure to check your PCM part number before purchasing.

Q: How does this kit improve my truck’s performance?
This kit optimizes your truck in several ways:

Improves exhaust flow, resulting in better fuel efficiency and increased power.
Lowers combustion chamber temperatures for smoother, more reliable performance.
Reduces strain on your engine’s cooling and exhaust systems, extending their lifespan.

Q: Can I install this kit myself, or do I need a professional?
Absolutely, you can install it yourself! This kit is designed with DIY enthusiasts in mind. Detailed installation instructions and video tutorials are provided to make the process as smooth as possible. With some basic tools and mechanical know-how, you’ll have your truck upgraded in no time.

Q: Is this kit legal for road use?
No, this kit is intended for off-road use only. It helps maximize performance for activities like trail driving, racing, or heavy-duty towing, but it may not comply with emissions regulations for public roads in some areas. Always check your local laws before installation.

Q: What kind of power gains can I expect?
With the Mini Maxx V2 Delete Tuner / EFI LIVE Tuner, you can achieve noticeable power gains by optimizing your truck’s performance. While specific results depend on your tune and setup, users often report smoother throttle response, better low-end torque, and improved towing capabilities.

Q: Will this kit negatively impact my truck's engine lifespan?
Not at all—if anything, it does the opposite. By removing restrictive components like the EGR and DPF, this kit reduces backpressure and lowers combustion temperatures. These changes reduce wear and tear, helping your engine run more efficiently and reliably over the long haul.

Q: Does this kit require regular maintenance after installation?
No additional maintenance is required beyond your truck’s usual service schedule. However, since you’re upgrading your system, it’s a good idea to regularly check connections and ensure everything remains properly installed, especially if you’re frequently off-roading.

Q: What happens if I want to return my truck to stock settings later?
The Mini Maxx V2 Delete Tuner allows you to revert your truck to its original factory tune. This flexibility ensures you can return to stock settings whenever needed, whether for resale or compliance purposes.

Q: Why should I choose this kit over individual components?
This All-in-One Kit simplifies the entire upgrade process. By bundling the tuner, EGR Delete Kit, and DPF Delete Race Pipe, it ensures compatibility and eliminates the guesswork. Plus, everything you need arrives in one package, saving you time and hassle compared to sourcing components separately.

Q: What power levels are included for EFI LIVE Tuner?

Four selectable tune levels: