When it comes to modifying the 5th Gen (2019+) Ram 6.7L Cummins, we know owners are looking for reliability, flow efficiency, and a cleaner engine bay. Recently, we partnered with Mick from the YouTube channel @Nock Ranch to put our SPELAB All-in-One Delete Kit to the ultimate test.
Who is Nock Ranch?
If you aren’t familiar with Nock Ranch, you should be. Mick isn't your average influencer polishing a pavement princess; he is a hands-on mechanic based in Ohio who specializes in classic car revival and heavy diesel equipment rescue. From resurrecting abandoned excavators to hauling vintage Caterpillar bulldozers, his 2019 Ram 3500 Dually is a true workhorse that tows heavy loads daily.
Mick’s philosophy is simple: "Don't be afraid to grab that wrench and get after it." Because he relies on his truck for his livelihood, reliability isn't optional—it's mandatory. That makes his honest, no-sugarcoating review of our kit incredibly valuable.
Here is our technical breakdown of his build, the installation process, and the critical distinction between hardware and tuning.
1. The "Why": The Reality of Soot Buildup
In the video, Mick pulls off the stock intake elbow at around the 10-minute mark to reveal the ugly truth hiding inside his engine. His reaction says it all:
"That is insane. The amount of soot is caked... it's still breathing, but not by much."
This visual evidence validates exactly why we design these kits. The stock EGR system recirculates exhaust gases back into the intake to lower combustion temperatures. However, on a high-mileage or heavy-duty truck like Mick’s, this results in carbon deposits that restrict airflow and reduce efficiency.
The Solution: The SPELAB 6.7 Cummins EGR Delete Kit installs block-off plates and removes the cooler assembly, ensuring your Cummins breathes only clean, fresh air—crucial for a truck that works as hard as Nock Ranch’s dually.
2. Installation & Fitment: An Engineer's Review
Mick noted that the installation was "fairly self-explanatory" and he didn't encounter major issues with the SPELAB hardware. However, he did highlight a few technical points worth noting for DIYers:
The Coolant Reroute
- Observation: Mick mentioned the coolant hose near the firewall was a "tight fit." The space between the 6.7L head and the firewall on 5th Gen Rams is notoriously tight.
- Our Design: We provide a replacement barbed fitting in the kit designed to secure this line. While Mick opted to slide the hose over the existing nipple (which works!), we recommend using the provided brass fitting for maximum security against vibration and heat cycles.
The CCV Reroute
- Why it matters: Mick also installed the Crankcase Ventilation (CCV) reroute for 6.7 Cummins. This simple hose upgrade prevents oil mist from the crankcase being fed back into the turbo compressor wheel, keeping your turbo blades clean and efficient.
3. The Sound Test: 5-Inch vs. 4-Inch Exhaust
One of the most valuable parts of the Nock Ranch review was the A/B testing of the exhaust diameter. Mick wanted to avoid the dreaded "highway drone" while towing his heavy equipment. He compared a full 5-inch straight pipe against a 5-inch system stepped down to a 4-inch tailpipe.
- 5-Inch Straight Pipe: Delivered a deep, aggressive tone but introduced some drone that Mick felt might be too much for long highway hauls.
- 5-Inch into 4-Inch (Mick’s Choice): He used a reducer to keep the tailpipe at 4 inches. The result? "That is exactly what I want." It killed the drone while keeping the diesel rumble.
SPELAB Note: Our exhaust kits are modular. Whether you want the maximum flow of a 5-inch system or the controlled tone of a 4-inch, our piping is mandrel-bent to ensure zero restriction regardless of your choice.
4. Engineer’s Note: The Importance of Proper Tuning
Installing a delete kit is a two-part process: Hardware and Software.
- Hardware (SPELAB): We provide the physical components—block-off plates, piping, and hoses—that allow your engine to run efficiently.
- Software (Tuning): To complete the modification, your truck’s ECU must be reflashed to understand these changes and prevent error codes.
In the video, Mick successfully finalized his build using a RaceME tuner. For 2019+ Ram models, the ECU encryption is more complex than older generations. Therefore, we strongly recommend researching and selecting a reputable tuner (such as RaceME or EZ Lynk) that is specifically compatible with your truck's year and model to ensure a smooth, check-engine-light-free experience.
Check out Mick@Nock Ranch full video.
Conclusion
Mick from Nock Ranch sums it up best:
"I'm happy with the quality. I'm happy with the ease of install... This is a good way to free up your engine bay and have peace of mind."
We want to thank Nock Ranch for the honest review. If you love classic car revivals and seeing heavy equipment get a second chance at life, make sure to subscribe to his channel.
FAQ: Common Questions About Deleting the 2019+ Ram
Q: Does the SPELAB kit come with a tuner?
A: No. SPELAB focuses on manufacturing high-quality hardware (EGR plates, exhaust systems, hoses). We do not sell tuning software. Please purchase a compatible tuner separately.
Q: Will this kit fit a 2020 or 2021 Ram?
A: Yes, the 5th Generation Ram (2019-2024) shares the same engine architecture. Our kit is designed to fit these model years.
Q: Is the installation difficult for a beginner?
A: As Mick mentioned, the process is "self-explanatory" if you are mechanically inclined. However, removing the stock EGR can be time-consuming due to bolt locations. We recommend setting aside a full weekend for the project.
Q: Will deleting the EGR improve engine reliability?
A: Many owners choose to delete the EGR system to reduce soot accumulation inside the intake and avoid long-term clogging issues. While results depend on usage and tuning quality, removing exhaust gas recirculation can help maintain cleaner airflow on hard-working trucks.
Q: Does this kit remove the EGR cooler or just block it off?
A: The SPELAB All-in-One Delete Kit uses block-off plates and rerouted components to eliminate exhaust gas flow through the EGR system. Depending on the configuration, the factory cooler may remain in place but is no longer active.
Q: Is this delete kit intended for street use?
A: This product is intended for off-road or competition use only, where permitted by law. Local and federal emissions regulations vary, so always check applicable laws before modifying your vehicle.
Q: Will I notice a change in fuel economy after installing the kit?
A: Some owners report improved throttle response and more consistent fuel economy after deleting the EGR system, especially when towing. Actual results vary based on driving habits, load, and tuning calibration.
Q: Do I need to remove the cab to install this kit?
A: No, a cab-off installation is not required. As shown in Mick’s install, the kit can be installed with the cab on, although access is tight in certain areas and patience is recommended.
The products discussed in this article, specifically those related to the removal or modification of emissions control systems (including but not limited to EGR, DPF, and SCR deletes), are designed and intended solely for use on competition racing vehicles that are not registered for street use and may never be used on public highways, roads, or streets.
Removing or disabling emissions equipment is a violation of the U.S. Clean Air Act and other federal and state regulations. SPELAB assumes no responsibility for any misuse of these products or any fines/penalties incurred by the user. By purchasing or installing these parts, the customer acknowledges that they are using the product for off-road competition purposes only and assumes all liability and risk associated with its use.
John Lee
Mechanical Engineer | 10+ Years Experience
John has spent the last decade engineering and testing high-performance automotive components. Specializing in drivetrain durability and thermal management across Powerstroke, Cummins, and Duramax applications, he bridges the gap between OEM limitations and aftermarket performance. His philosophy: "Factory parts are just a starting point."
