Let's talk about one of the most debated, yet most beneficial, modifications for the modern 6.7L Cummins: the EGR delete. If you're driving a 2019-2024 Ram and are serious about long-term reliability and performance, understanding and addressing the Exhaust Gas Recirculation system is non-negotiable.
This isn't about chasing massive horsepower numbers (that's the DPF's department). This is about engine preservation, consistent performance, and reducing catastrophic failure points. In this guide, we'll strip away the complexity, explain the "why," walk you through the "how," and help you choose the right kit for the job.
The EGR system's job is to reduce NOx emissions. It does this by taking a portion of your hot, soot-laden exhaust gas and cooling it via the EGR Cooler before rerouting it back into the engine's intake manifold to be reburned.
Why It's a Problem (The "Disease"):
The Universal Steps:
When comparing two kits, the packaging and coolant hoses might look similar, The main difference is the support structure.
A: Technically, yes, but it's not optimal. The truck will still run, but the tune required to disable the EGR is almost always paired with a full emissions-off tune. Furthermore, a clogged DPF can still cause issues. Most users perform both deletes together for a holistic solution.
Q: How long does the install take?
A: For a competent DIYer with good tools, budget 4-8 hours. The exhaust manifold bolts and coolant line disconnections are the most time-consuming parts. Having a 1/4" drive swivel socket set and plenty of PB Blaster is key.
Q: Will I see a fuel economy increase?
A: Not directly or significantly from the EGR delete alone. The major MPG gains come from the DPF delete stopping regeneration cycles. The EGR delete protects your long-term efficiency by preventing carbon buildup.
Q: What about my warranty?
A: Any powertrain warranty will almost certainly be voided if the dealer discovers this modification. This is a fact you must accept.
Q: The Legal Elephant in the Room...
A: Here is the necessary disclaimer, stated plainly. In the United States, for vehicles registered for on-road use, tampering with or removing any federally-mandated emissions control device—including the EGR system—is a violation of the Clean Air Act. The EPA has increased enforcement. These kits are sold strictly for off-road and competition vehicles (e.g., farm trucks, race trucks, vehicles used exclusively on private property). It is the sole responsibility of the vehicle owner to understand and comply with all local, state, and federal regulations. In many areas, this modification will cause you to fail an emissions inspection.
Choosing between a sophisticated coolant-reroute kit and a robust, simplified delete comes down to your mechanical philosophy and which installation benefits you value most. Either choice is far superior to leaving the factory failure point in place.
Do the research, get the proper supporting tune from a reputable source, install carefully, and enjoy the peace of mind that comes with a cleaner, safer-running engine.
Stay clean, run strong.
This isn't about chasing massive horsepower numbers (that's the DPF's department). This is about engine preservation, consistent performance, and reducing catastrophic failure points. In this guide, we'll strip away the complexity, explain the "why," walk you through the "how," and help you choose the right kit for the job.
Part 1: The Culprit - Understanding the Factory EGR System
What it Does:The EGR system's job is to reduce NOx emissions. It does this by taking a portion of your hot, soot-laden exhaust gas and cooling it via the EGR Cooler before rerouting it back into the engine's intake manifold to be reburned.
Why It's a Problem (The "Disease"):
- Soot Buildup - The Silent Killer: This is the core issue. Exhaust gas is dirty. Forcing it back through your intake manifold, throttle body, and ultimately into the cylinders creates a thick, abrasive carbon sludge. This robs power, harms efficiency, and over tens of thousands of miles, can literally choke your engine.
- The Ticking Time Bomb - EGR Cooler Failure: The cooler is a fragile, finned heat exchanger. It's under constant thermal stress. When it fails (and it's a matter of when, not if on high-mileage trucks), it leaks. The result? Coolant into your intake and cylinders. This can cause hydrolock, catastrophic engine damage, and a repair bill that will make you sick. Searching "6.7L Cummins EGR cooler failure" will show you the nightmare.
- Heat Soak and Reduced Efficiency: You're recycling hot gas. This increases intake air temperatures, making the engine less efficient and increasing the strain on your intercooler and cooling system.
- Unstable Idle and Throttle Response: The carbon buildup on the EGR valve and intake components can lead to a rough idle, sluggish throttle response, and generally unhappy running.
Part 2: The Cure - Benefits of an EGR Delete
Removing the EGR system is like giving your engine a clean, permanent diet. The benefits are profound and tangible:- Eliminates Carbon Buildup: Your intake tract stays clean. Airflow remains optimal, and your engine internals are protected from abrasive contaminants.
- Prevents Catastrophic Engine Failure: By removing the EGR cooler, you completely eliminate the risk of coolant intrusion into your engine. This alone is worth the price of admission for peace of mind.
- Lowers Engine Operating Temperatures: Coolant is no longer used to cool exhaust gas in the faulty cooler. This means your primary cooling system runs cooler and more efficiently, especially under load.
- More Consistent Performance: A clean engine is a happy engine. Expect smoother idle, crisper throttle response, and more consistent power delivery as carbon stops gumming up the works.
- Simplifies the Engine Bay: Removing the cooler, valve, and associated piping cleans up the engine compartment, making future maintenance easier.
Part 3: The Procedure & Your Toolkit: What You Need to Know
An EGR delete is a moderately advanced mechanical job. You're dealing with coolant lines, exhaust manifold bolts, and potentially the intake manifold. Here's the universal process and key considerations:The Universal Steps:
- Drain the Coolant: You must partially drain the engine coolant as you'll be disconnecting lines from the EGR cooler.
- Remove the Factory Components: This involves unbolting the EGR valve, disconnecting the cooler lines, and removing the cooler itself from the passenger-side exhaust manifold and the intake elbow/crossover pipe.
- Install Block-Off Plates: A plate seals the hole in the exhaust manifold where the cooler was. Another plate or a new intake elbow seals the intake side.
- Re-route Coolant: This is the critical part. The factory coolant circuit for the cooler must be closed off or re-routed to prevent flow issues. This is where kit design makes all the difference.
- Reassemble, Refill Coolant, and TUNE: Bleed the cooling system thoroughly. MOST IMPORTANTLY: You MUST have a custom tune to disable the EGR system in the ECU. Otherwise, you'll have a constant check engine light, fault codes, and the truck may not run properly.
When comparing two kits, the packaging and coolant hoses might look similar, The main difference is the support structure.
Option A:
This kit is engineered for those who want a super clean, integrated solution that maintains full coolant circulation. The TruckTok 2010-2024 EGR Valve Cooler Delete Kit takes a comprehensive approach.- Key Feature: Integrated Coolant Rerouting. It doesn't just block coolant; it includes a new, machined riser bracket with integrated coolant passages. This bracket re-routes the coolant flow directly to the rear of the cylinder head (between cylinders 5 & 6), which is a known cooler-running area.
- The Benefit: This promotes faster and more efficient coolant circulation than the stock routing through the restrictive EGR cooler. Your overall coolant temps can run cooler, and you avoid any risk of creating a "dead leg" or hot spot in the cooling system. The included silicone hoses and aluminum alloy components ensure durability.
- Best For: The perfectionist who wants the most complete, engineering-focused solution that enhances cooling system flow while deleting the EGR.
Option B:
This kit is for the purist who wants to remove the system as cleanly and simply as possible. The TruckTok 2009-2024 EGR Valve Cooler Delete Kit focuses on robust deletion.- Key Feature: Improved DDC Riser Bracket & Simplicity. Its standout feature is a cleverly designed "DDC Riser Bracket" that mounts directly to the engine block, eliminating the need to mess with the often-rusted and delicate exhaust manifold studs. This is a huge installation advantage.
- The Benefit: It provides a incredibly robust mounting point for your turbo/upper piping and simplifies the physical installation. It handles coolant by effectively blocking off the ports and includes the necessary block-off plates. The pre-tapped exhaust manifold plate is a great bonus for adding an EGT probe.
- Best For: The installer who values a straightforward, less fussy mechanical delete that solves the core problem (removing the failure-prone parts) with smart design that makes the job easier.
Part 4: The Hard Truths - FAQ & Legal Reality
Q: Can I install just an EGR delete and leave the DPF/SCR system on?A: Technically, yes, but it's not optimal. The truck will still run, but the tune required to disable the EGR is almost always paired with a full emissions-off tune. Furthermore, a clogged DPF can still cause issues. Most users perform both deletes together for a holistic solution.
Q: How long does the install take?
A: For a competent DIYer with good tools, budget 4-8 hours. The exhaust manifold bolts and coolant line disconnections are the most time-consuming parts. Having a 1/4" drive swivel socket set and plenty of PB Blaster is key.
Q: Will I see a fuel economy increase?
A: Not directly or significantly from the EGR delete alone. The major MPG gains come from the DPF delete stopping regeneration cycles. The EGR delete protects your long-term efficiency by preventing carbon buildup.
Q: What about my warranty?
A: Any powertrain warranty will almost certainly be voided if the dealer discovers this modification. This is a fact you must accept.
Q: The Legal Elephant in the Room...
A: Here is the necessary disclaimer, stated plainly. In the United States, for vehicles registered for on-road use, tampering with or removing any federally-mandated emissions control device—including the EGR system—is a violation of the Clean Air Act. The EPA has increased enforcement. These kits are sold strictly for off-road and competition vehicles (e.g., farm trucks, race trucks, vehicles used exclusively on private property). It is the sole responsibility of the vehicle owner to understand and comply with all local, state, and federal regulations. In many areas, this modification will cause you to fail an emissions inspection.
Conclusion: An Investment in Longevity
An EGR delete is not a "power mod." It is a reliability mod. It's surgery to remove a tumor before it becomes malignant. By eliminating the soot-recirculation and the fragile EGR cooler, you are directly investing in the long-term health and durability of your 6.7L Cummins.Choosing between a sophisticated coolant-reroute kit and a robust, simplified delete comes down to your mechanical philosophy and which installation benefits you value most. Either choice is far superior to leaving the factory failure point in place.
Do the research, get the proper supporting tune from a reputable source, install carefully, and enjoy the peace of mind that comes with a cleaner, safer-running engine.
Stay clean, run strong.
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