EGR & CCV Delete Blogs

Pros and Cons of a 6.7 Cummins Delete

• Mar 11, 2025
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The 6.7L Cummins diesel engine, widely used in Dodge Ram trucks (2500/3500/4500 models), is renowned for its durability and towing capacity. However, many owners opt for a "delete" process—removing or bypassing emissions control systems like the Exhaust Gas Recirculation (EGR), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR). This controversial modification aims to enhance performance but carries significant trade-offs. Below, we explore the technical, legal, and practical implications of a 6.7 Cummins delete. Pros of a 6.7 Cummins Delete 1. Improved Engine Performance Deleting emissions systems reduces exhaust backpressure, allowing the engine to breathe more efficiently. For instance, removing the DPF and EGR systems minimizes restrictions in the exhaust flow, which can increase horsepower and torque by 15–20%. The turbocharger also operates more effectively without oil contamination from crankcase ventilation systems, a common issue in stock configurations. DynoVox offers high-performance 6.7 Cummins delete kits designed to optimize exhaust flow and maximize power gains without compromising reliability. 2. Enhanced Fuel Efficiency Emissions systems like the DPF require periodic regeneration cycles, where fuel is injected into the filter to burn off accumulated soot. These cycles consume extra diesel, reducing mileage by 2–4 MPG. Post-delete, users often report a 10–15% improvement in fuel economy due to the elimination of regeneration. DynoVox's DPF delete kits not only eliminate the need for these cycles but also improve combustion efficiency, ensuring better mileage and overall fuel savings. 3. Reduced Maintenance Costs The EGR system recirculates exhaust gases, leading to carbon buildup in the intake manifold and valves. Over time, this causes costly repairs such as turbocharger replacement or engine overheating. Deleting the EGR and DPF eliminates these maintenance headaches, saving owners an estimated $3,000–$5,000 over the vehicle’s lifespan. DynoVox's EGR delete kits are built with high-quality materials, ensuring durability and hassle-free installation. 4. Longer Engine Lifespan By preventing soot and oil residue from entering critical components (e.g., the turbocharger and intercooler), a delete kit can extend the engine’s longevity. For example, rerouting the crankcase ventilation (CCV) system avoids oil accumulation in the turbo, which is a leading cause of premature failure in stock configurations. DynoVox’s CCV reroute kits ensure clean airflow, reducing wear on essential engine components. 5. Customization and Tuning Flexibility Aftermarket delete kits often include programmable tuners that allow users to optimize engine parameters. This enables tailored performance for towing, off-roading, or daily driving, which is restricted in factory settings due to emissions compliance. DynoVox provides advanced tuning solutions that work seamlessly with their delete kits, allowing users to unlock the full potential of their 6.7 Cummins engine. Cons of a 6.7 Cummins Delete 1. Legal and Regulatory Risks In most countries, including the U.S., tampering with emissions systems violates the Clean Air Act. The Environmental Protection Agency (EPA) imposes fines up to $4,819 per violation for individuals and $48,019 for manufacturers. Some states also enforce strict emissions testing, rendering deleted trucks ineligible for registration. 2. Voided Warranty Deleting emissions components immediately voids the manufacturer’s warranty. For newer trucks, this can leave owners liable for expensive repairs, such as $8,000–$12,000 for a replacement SCR catalyst or DPF. 3. Environmental Impact Emissions systems reduce harmful pollutants like nitrogen oxides (NOx) and particulate matter. Removing them increases NOx emissions by up to 40 times the legal limit, contributing to air quality degradation and public health risks. 4. Resale Value Depreciation A deleted truck may appeal to niche buyers but faces limited resale prospects. Many dealerships and buyers avoid modified vehicles due to legal concerns or the cost of reinstating emissions systems, which can exceed $5,000. 5. Ethical and Social Considerations The diesel community is divided over deletes. While some view them as necessary for performance, others criticize the practice as environmentally irresponsible. Public perception of "rolling coal" (intentional smoke production post-delete) has further stigmatized such modifications. Technical Considerations for a Successful Delete Kit Selection: Choose a reputable delete kit, such as those offered by DynoVox, that includes high-quality components like billet plugs, silicone hoses, and tuners. Tuning Software: Use DynoVox’s advanced tuning tools to avoid engine damage. Improper tuning can lead to excessive exhaust gas temperatures (EGT) or fuel injector failure. Professional Installation: While DIY kits are available, improper installation may cause vacuum leaks or sensor errors. Certified mechanics familiar with Cummins engines are recommended. Conclusion A 6.7 Cummins delete offers tangible benefits in performance and cost savings but comes with legal, environmental, and ethical drawbacks. Owners must weigh these factors against their priorities—whether maximizing horsepower, reducing long-term costs, or adhering to regulatory standards. For those proceeding with a delete, thorough research and professional guidance are critical to mitigating risks. For reliable and high-performance 6.7 Cummins delete kits, DynoVox provides industry-leading solutions designed for durability, efficiency, and optimized performance. Explore DynoVox’s complete range of delete kits and tuning options to ensure your truck runs at peak performance while minimizing risks.

What Does a CCV Reroute Do for the 6.7L Powerstroke?

• Dec 11, 2024
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This article primarily discusses the benefits of a CCV Reroute and offers guidance on how to select a suitable CCV Reroute. It explains the advantages such as reducing oil contamination and improving engine performance, while also providing tips on choosing the right kit based on factors like quality, compatibility, and maintenance needs.

What is an EGR Delete Kit and Why It’s Good for Your Diesel Engine

• Oct 02, 2024
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10 Things You Need To Know Before Buying EGR Delete Kit

• Sep 14, 2024
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Today, we’re diving deep into the EGR system—its history, evolution, how it works, and the real-world pros and cons. By the end of this article, you’ll have a solid understanding of the EGR system and the things you need to know before buying EGR Delete Kit. We’re not here to push opinions but to give you the knowledge you need. So, after you’ve read, drop a comment and let us know what you’re thinking. Alright, let’s jump right in! Click here to choose your EGR delete kit now at Dynovox → Table of Contents How EGR Works Benefits of EGR Delete Kits Legal Considerations of EGR Delete The Impact on Performance Potential Drawbacks of EGR Delete Kits Compatibility With Your Vehicle Installation Process Overview Costs vs. Benefits Analysis Real-world Experiences & User Review 1. How EGR Works in Your Vehicle & Why It’s Included Did you know that nearly 80% of the air we breathe is nitrogen? But when nitrogen gets hit with those extreme combustion chamber temperatures—over 1370 degrees—it turns into harmful nitrogen oxides. These gases exit your exhaust and enter the atmosphere. The EGR valve helps combat this by allowing some exhaust gases to recirculate back into the intake system. This dilutes the air mixture, causes it to burn slower, and reduces combustion temperatures by almost 150°C, thereby cutting down NOx production and making your exhaust cleaner. 2. Benefits of EGR Delete Kits While the EGR system is great for reducing nitrogen oxides and helping out the environment, the benefits stop there. When it comes to your engine’s performance, the EGR system can actually have negative effects. This is where an EGR delete kit comes into play. Many diesel truck owners are choosing to delete their EGR systems. The EGR system’s primary role is to reduce emissions, but it can also limit your truck’s performance. Performance Gains One of the biggest benefits of an EGR delete is improved performance. The EGR system can cause carbon buildup in the intake manifold, restricting airflow to your engine. By removing the EGR, you clear up these passages, allowing your engine to breathe better. This can lead to quicker throttle response, increased horsepower, and even improved fuel efficiency. Reliability The EGR system is known to malfunction, causing issues like rough idling or reduced power. Removing the EGR can increase your truck’s reliability. Extended Engine Life The EGR system can accelerate wear and tear on engine parts due to carbon buildup. By removing the EGR, you may extend your engine’s lifespan. Explore Dynovox EGR Delete Kits EGR Delete Kit for Cummins $115.99 EGR Delete Kit for Duramax $129.99 EGR Delete Kit for Powerstroke 69.99 SHOP NOW 3. Legal Considerations of EGR Delete In the U.S., EGR deletes are illegal. The EPA prohibits tampering with or removing any factory-installed emissions equipment. Vehicles with EGR deletes may face issues during inspections and could be deemed street-illegal. 4. The Impact on Your Engine’s Performance Deleting the EGR can result in significant performance gains, especially in vehicles that have accumulated higher mileage. Superheated air from a faulty EGR can sap horsepower. Removing the EGR can help regain lost power and make your engine more reliable. 5. Potential Drawbacks of EGR Delete Kits Increased emissions and environmental impact Potential voiding of manufacturer warranty Failure of emissions tests in areas with strict regulations 6. Compatibility with Your Vehicle Not every EGR delete kit is compatible with all engines. Make sure the kit you choose works for your specific engine model, and check if additional tuning or modifications are needed to ensure smooth performance after the delete. 7. Installation Process Overview Installing an EGR delete kit involves removing the EGR valve, installing block-off plates, and potentially rerouting vacuum lines. While it's a straightforward process for experienced mechanics, consider professional installation if you're not confident in doing it yourself. 8. Cost vs. Benefit Analysis EGR delete kits are a low-cost modification that can offer long-term benefits such as improved fuel efficiency and fewer engine problems. However, it’s important to weigh these benefits against potential risks like increased emissions and legal issues. 9. Real-World Experiences & User Reviews Many truck owners who have deleted their EGR systems report performance and fuel economy improvements. However, some face challenges such as check engine lights or trouble passing emissions inspections. 10. Conclusion From understanding the EGR system to weighing the pros and cons of an EGR delete, you now have the information to make an informed decision for your vehicle. Whether you’re after better performance or want to keep things eco-friendly, it’s all about what works best for you. Thanks for reading, and until next time, keep your engines running!

Easy EGR Delete Steps for LLY, LBZ, LMM Duramax Owners

• Aug 08, 2024
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Hey guys! Welcome back to Dynovox tutorial blog. Today, we are going to talk about how to delete EGR on a LLY, LBZ, LMM Duramax. The process of LBZ is very similar for LLY Duramax and LMM Duramax. If you have an LML, that will be a different process. If you find this article useful, please leave your comment below, and if you have questions, ask in the comments or reach out to us on Dyonovox page chat box or any social platform. Anyways, let's get started! EGR deletes, DPF deletes, and similar modifications are for off-road use only, such as race trucks. This isn't for public roads, so keep that in mind before deleting your truck. Also, you'll need to program the truck to shut off the check engine light because you can't just unplug the EGR valve without tuning the truck. I recommend programming your truck and putting on an aftermarket exhaust if you're doing an EGR delete. EGR Delete Process Let’s begin with LBZ. As mentioned, this process is very similar for LLY or LMM Duramax engines. The kit you need for LBZ will comes with a blocker plate, and other necessary components. A Dynovox 6.6L Duramax LBZ EGR Delete Kit is highly recommended here. (Don’t for get to use the code EGR10 for 10% discount and save some money.) Removing the EGR Cooler You can start by removing the EGR cooler. If you're just using blocker plates, follow along until we remove the cooler, then you'll be almost done. Once the EGR cooler is out, You can remove the downpipe and up-pipe, and install new components. First, remove the air intake pipe and disconnect the negatives on both batteries. Next, disconnect the electrical components bolted down with screws and move all the wiring loose. With the wiring out of the way, start unbolting the EGR cooler. Draining Coolant Next move, You can drain some coolant. GM removed the coolant drain on the rod, so we’ll have to pop out the fender and drain the coolant from a line there. After draining, you can get to the EGR cooler. Removing the Downpipe For the downpipe, remove the heat shield on the turbo by taking out three 10-millimeter bolts. The cover is tight, so cut it into two pieces with a zip cut for easier removal. Next, remove the downpipe’s heat shield and then the downpipe itself, sliding it out through the bottom. Exhaust and Up-Pipe Removal Remove the wheel and fender for more room. Loosen the exhaust, then remove the heat shield bolts. Unbolt the up-pipe from the exhaust manifold and the turbo. Use a ratchet to loosen the bolts. If bolts are tight, heat them up to ease removal. Carefully remove the up-pipe, ensuring no bolts snap. Final Steps Compare the old downpipe with the new one—always use aftermarket for better air flow and easier installation. Finally, replace the components, ensuring everything is securely bolted and connected.  That's it! If you followed along, your EGR delete should be complete. Don’t for get to use the code EGR10 for 10% discount and save some money. Check out EGR Kit for your vehicle: 6.6L Duramax LBZ EGR Delete Kit  6.6L Duramax LMM EGR Delete Kit

Best EGR Delete kit for 6.7 Cummins: Top Picks and Reviews

• Aug 07, 2024
• 1 comment

Learn about EGR Delete kit for 6.7 Cummins, common issues, and how a EGR Delete kit can prevent failures.  1. Understanding the Importance of EGR Delete 1.1  What is a EGR (Exhaust gas recirculation) Exhaust gas recirculation (EGR) is the move to cut down NOx levels from your engine. It works by mixing some exhaust gases back into the engine's cylinder, swapping out a bit of the air with CO2. This trick lowers the combustion temperature because there's less oxygen in the mix, which means less NOx is formed. You can cool those exhaust gases externally and pipe them into the inlet manifold, or handle it internally through the camshaft. Read on to learn about the role of EGR in 6.7 Cummins. 1.2 The Role of EGR in 6.7 Cummins Engines In the 6.7 Cummins engines, the EGR system is all about cutting down on those nasty nitrogen oxide (NOx) emissions. It does this by taking some of the exhaust gases and sending them back into the intake manifold. This swap cools down the combustion temps because it reduces the oxygen level, which means less NOx gets formed. The exhaust gases usually go through an EGR cooler before heading back into the engine, dropping the intake air temp even more and making the whole process more effective. The EGR system keeps the engine in check, balancing emissions with performance. But, you've gotta keep it clean—over time, the EGR valve and cooler can get clogged with soot and gunk, messing with your engine's performance and fuel efficiency. 2. Common Issues Caused by EGR EGR is basically a slow killer for any engine. That abrasive exhaust is wrecking your rings and internal components. Without EGR, your oil stays way cleaner, the engine runs cooler, you get better MPG, and you spend less time in the shop dealing with busted EGR parts. With EGR, you're looking at an overhaul every million miles. And on new engines, you can’t just delete the EGR or you'll fry the pistons and valves. Manufacturers are cranking up the compression and adding more fuel to run hotter, then using EGR gases to cool things down and control the burn. It’s a tricky balance, but that’s how they manage emissions while keeping the engine from cooking itself. 3. The Financial Impact of EGR 3.1 Repair Costs Associated with EGR Failures Repairing an EGR valve? You're looking at dropping between $376 and $462 on average. Labor's gonna set you back about $90 to $113, and the parts run from $287 to $349. Keep in mind, this doesn’t cover taxes, fees, or any extra repairs that might pop up, and prices can vary depending on where you’re at. 3.2 Long-term Consequences of Neglecting EGR Maintenance If your EGR valve is acting up, you'll definitely feel it in your ride. Expect a rough idle, hesitation, or even stalling when you fire up your engine. Acceleration might be sluggish, and you could notice a serious lack of power, especially when tackling hills. Plus, you'll probably see your fuel consumption go up. 4. what is the best delete kit for 6.7 Cummins and why Dynovox ? 4.1 Key Features of the Dynovox EGR Delete Kit Enhanced Engine Performance: The Dynovox EGR Delete Kit boosts your engine's performance by eliminating exhaust gas recirculation, resulting in improved power and throttle response. Improved Fuel Efficiency: By removing the EGR system, your engine runs more efficiently, leading to better fuel economy and reduced operating costs. Lowered Engine Temperatures: The EGR Delete Kit helps lower engine temperatures by removing the recirculated exhaust gases, reducing the risk of overheating and extending engine life. Reduced Maintenance Costs: With the EGR system gone, there's less chance of clogging and related issues, meaning fewer trips to the mechanic and lower maintenance costs overall. Easy Installation: The Dynovox EGR Delete Kit comes with comprehensive instructions and all  necessary hardware, making it straightforward to install, even for DIY enthusiasts. Continue reading to learn about the benefits of Dynovox EGR Delete Kit 4.2 Benefits of deleting the EGR with Dynovox EGR Delete Kit Boosted Engine Performance: Removing the EGR system with the Dynovox kit enhances your engine's power and responsiveness, delivering a noticeable improvement in overall performance. Better Fuel Efficiency: Without the EGR, your engine operates more efficiently, resulting in improved fuel economy and savings on fuel costs. Lower Engine Temperatures: The delete kit helps reduce engine temperatures by eliminating the recirculated exhaust gases, minimizing the risk of overheating and prolonging engine life. Reduced Maintenance Costs: Say goodbye to EGR-related issues and frequent repairs. With the EGR deleted, you'll spend less time and money at the mechanic. Cleaner Engine Oil: Without exhaust gases being reintroduced into the engine, your oil stays cleaner for longer, improving engine lubrication and extending the intervals between oil changes. 5. Compatibility and Fitment of the Dynovox EGR Delete Kit for 6.7 Cummins Don't wait until it's too late—Delete today with Dynovox EGR Delete Kit and drive with confidence.