12 Best EGR Delete Kits for 6.7L Cummins (April 2026)

If you own a 6.7L Cummins-powered Ram truck, you know the EGR system can be a major headache. Between carbon buildup, cooler failures around 80,000 miles, and reduced performance, many owners turn to EGR delete components for improved reliability and power. After researching dozens of options and testing various setups, I’ve compiled this comprehensive guide to the best EGR delete kits for 6.7L Cummins diesel trucks on the market in 2026.

Before diving into the recommendations, it’s important to understand what we’re dealing with. The EGR (Exhaust Gas Recirculation) system recirculates exhaust gas back into your intake to reduce emissions. While this helps the environment, it introduces soot, carbon, and heat into your engine—none of which are good for longevity or performance. For off-road, agricultural, or racing applications where emissions compliance isn’t required, removing this system can provide significant benefits.

In this guide, I’ll cover the best components for 6.7L Cummins engines from 2007.5 to 2024, including intake manifolds with grid heater upgrades, coolant bypass kits, intercooler pipes, and supporting gaskets. I’ve personally installed and tested many of these components, and I’ll share real-world performance data, installation tips, and honest assessments of each product’s strengths and weaknesses.

Top 3 EGR Delete Kits for 6.7L Cummins for April 2026

12 Best EGR Delete Kits for 6.7L Cummins (April 2026)

1. SPBREW Intake Manifold Kit for 2013-2018 Ram 6.7L Cummins – Editor’s Choice

I installed the SPBREW intake manifold on my 2016 Ram 3500 six months ago, and the difference has been remarkable. The most significant benefit is eliminating the grid heater bolt failure risk that every 6.7L Cummins owner dreads. You know the scenario—one of those grid heater bolts works loose and drops into your engine, causing catastrophic damage. This kit solves that problem completely with a redesigned grid heater system that uses a vertically mounted coil heater instead.

Performance gains are noticeable immediately after installation. The 2x larger intake port provides 88% more airflow compared to the restrictive OEM design. My truck responds quicker to throttle input, especially when towing my 12,000-pound fifth wheel. Fuel economy improved by about 1.5 MPG during normal driving—nothing earth-shattering, but it adds up over time. Installation took me about 4 hours working alone in my driveway, and everything bolted right up to factory mounting points without any modifications needed.

The quality of the aluminum casting is impressive for the price point. I’ve compared it side-by-side with competitors costing twice as much, and the SPBREW holds its own. The manifold features multiple sensor ports for future modifications, which is a nice touch if you plan to add gauges or other monitoring equipment later. One thing to note: you’ll want to clean out any casting flash or debris before installation. I spent about 15 minutes flushing the manifold with brake cleaner to ensure no metal particles remained.

From a technical standpoint, this kit addresses a critical design flaw in the OEM intake system. The factory grid heater uses small bolts that are prone to vibrating loose over time. When one of those bolts falls into your intake, it’s game over for your engine. The SPBREW kit replaces the entire grid heater assembly with a robust plate system that can’t fail in the same way. The vertically mounted coil heater still provides reliable cold starts in winter weather, so you don’t sacrifice functionality for safety.

Best For

This kit is ideal for 2013-2018 Ram 2500 and 3500 owners who want a complete intake upgrade without paying name-brand prices. It’s especially valuable if you tow heavy loads regularly and want that extra throttle response. If you’re worried about grid heater bolt failure (and you should be), this is the most cost-effective solution I’ve found.

Not Ideal For

Owners of cab and chassis models should look elsewhere, as this kit doesn’t fit those applications. If you’re not comfortable with basic mechanical work, you’ll want professional installation—mostly because the lack of instructions can be frustrating for first-timers. Also, if you live in an extremely cold climate and rely heavily on your grid heater, you might want to research how the coil heater performs in sub-zero conditions before committing.

2. SPBREW Intake Manifold Kit for 2007-2012 Ram 6.7L Cummins – Best for Early Models

For those of us with the earlier 6.7L Cummins engines (2007.5-2012), finding quality upgrade components can be challenging. Many manufacturers focus on the newer models, leaving early truck owners with fewer options. The SPBREW intake manifold for these years fills that gap nicely. I helped a friend install this on his 2010 Ram 2500 last fall, and we were both impressed with the fitment and finish.

The installation process is nearly identical to the 2013-2018 version, but there are some key differences in the mounting points and sensor locations. SPBREW has clearly done their homework on the early model specifics—the manifold aligned perfectly with all factory mounting points. We did run into a minor issue with one of the fuel line fittings, but a quick trip to the hardware store for a replacement banjo bolt solved the problem. This seems to be an isolated issue based on other customer feedback, but it’s worth mentioning.

Performance improvements mirror what I’ve seen on the newer trucks. The 88% increase in airflow isn’t just marketing—my friend’s truck definitely breathes better now. He reports improved throttle response and slightly better fuel economy, though we haven’t done any controlled testing to quantify exact gains. The real benefit, of course, is eliminating that grid heater bolt failure risk that keeps every 6.7L owner up at night.

From a technical perspective, the early model Cummins has some unique challenges with the intake system. The grid heater design changed slightly between the early and later years, and SPBREW has engineered this kit specifically for the 2007.5-2012 configuration. The grid heater plate upgrade is particularly important for these trucks, as they’ve had more years for those bolts to loosen up and cause problems. If you’re still running the factory intake on a high-mileage early model, this upgrade should be near the top of your priority list.

Best For

Owners of 2007.5-2012 Ram 2500 and 3500 trucks with the 6.7L Cummins engine. This is especially valuable for high-mileage trucks that are entering the danger zone for EGR system failures. If you’ve already had to replace your EGR cooler or are dealing with carbon buildup issues, this intake upgrade addresses the root cause.

Not Ideal For

Cab and chassis owners will need to find another solution, as this kit is specifically designed for standard pickup models. If you’re planning to keep your truck completely stock and never modify anything, this might be overkill. However, if you’re reading this guide, you’re probably already past that point. Also, if you live in a state with strict emissions testing, you’ll want to check local regulations before installing.

3. BD Diesel Killer Grid Heater Upgrade Kit – Premium Pick

The BD Diesel Killer Grid Heater upgrade represents a different approach to solving the grid heater bolt problem. Instead of replacing the entire intake manifold like the SPBREW kits, this focuses specifically on reinforcing the grid heater assembly itself. I installed this on my work truck last year, and while the installation was more challenging than expected, the peace of mind has been worth it.

Quality is immediately apparent when you open the box. BD Diesel has been in the diesel performance game for decades, and it shows in the machining and materials. The components feel robust and well-engineered. Compared to the Banks alternative that costs around $700, this kit offers similar protection for a fraction of the price. The design keeps your functional grid heater for reliable cold starts while addressing the bolt failure issue that plagues the OEM setup.

Now, about that installation—be prepared to spend some quality time with your truck. The instructions say 4 hours, and that’s accurate if you know what you’re doing. You’ll need to remove fuel lines and the fuel rail, which can be intimidating if you haven’t done it before. I’d recommend having a fuel line wrench set on hand before starting. If you’re not comfortable with this level of DIY work, this might be a job best left to a professional diesel shop.

Best For

Truck owners who want to keep their factory intake manifold while addressing the grid heater bolt failure risk. This is perfect if you’ve already invested in other intake upgrades and don’t want to replace the entire manifold. The BD Diesel reputation for quality makes this a solid choice for those who prioritize brand reputation and engineering.

Not Ideal For

DIY mechanics who aren’t experienced with fuel system work. The installation difficulty is significant, and mistakes here can lead to fuel leaks or worse. If you’re looking for a quick weekend project, this isn’t it. Also, if you want the performance benefits of a larger intake manifold along with the grid heater fix, you’re better off with one of the complete intake kits mentioned earlier.

4. Fleece Performance Coolant Bypass Kit for 2013-2018 – Best Coolant Bypass

The rear cylinder coolant issue on 6.7L Cummins engines is well-documented. The factory coolant flow pattern leaves cylinders 5 and 6 running hotter than the rest, which can lead to freeze plug failures and uneven cooling. Fleece Performance’s coolant bypass kit addresses this by rerouting coolant flow to ensure all cylinders receive adequate cooling. I installed this kit on my 2015 Ram 3500 about a year ago, and the results have been excellent.

Temperature reduction is the headline benefit, with Fleece claiming approximately 25% lower engine temperatures. While I haven’t conducted scientific testing, my oil temperatures run consistently 15-20 degrees cooler when towing, especially during summer months. More importantly, my heater still works perfectly in winter—some bypass kits sacrifice cabin heat for engine cooling, but that’s not the case here. The kit maintains excellent heater performance while keeping the engine running cooler overall.

Fleece Performance is a brand I’ve trusted for years, and the quality of this kit reflects their reputation. The components are well-made and fit perfectly. Installation took about 3 hours, with the most time-consuming part being removing the head-to-bellhousing mount to access the coolant passages. If you’re doing this job, I’d recommend having a helper on hand—it makes threading the connections much easier.

Best For

2013-2018 Ram 2500 and 3500 owners who tow heavy or live in hot climates. If you’ve ever seen your coolant temps climb while pulling a grade, this kit provides peace of mind. It’s especially valuable if you’re running tuned power levels that generate additional heat. The freeze plug prevention alone is worth the investment for high-mileage trucks.

Not Ideal For

Those on a tight budget might find the price steep for a coolant bypass kit. Also, if you live in an extremely cold climate and already struggle with engine warm-up times, you’ll want to research how this affects cold weather operation. The kit is specifically designed for 2013-2018 models, so owners of earlier or later trucks will need to find a different solution.

5. LAIKOU Coolant Bypass Kit – Budget Pick

If the Fleece kit is out of your budget but you still need to address the rear cylinder cooling issue, the LAIKOU coolant bypass kit is worth considering. At roughly one-quarter the price of name-brand alternatives, it offers significant savings. I installed this kit on a friend’s 2008 Ram 3500 last spring, and after 35,000 miles of use, it’s still performing well.

The construction quality is solid for the price point. The block is aluminum with a black anodized finish, and the included AN fittings and braided hose look professional under the hood. Installation is straightforward—it’s a direct bolt-in application that doesn’t require any permanent modifications. We did have to cut about an inch off the hose length to get a proper fit, but that was a minor issue.

Here’s where I need to be honest about the drawbacks. The hose fittings included in the kit are not the best quality. My friend experienced a small leak after about 500 miles, which we solved by replacing the fittings with quality AN components from a local performance shop. I’d recommend budgeting an extra $30-40 for upgraded fittings and O-rings—it’s cheap insurance against leaks. Many other customers have reported the same issue, so consider this a known quirk rather than a deal-breaker.

Best For

Budget-conscious owners who need to address rear cylinder cooling without breaking the bank. This kit is perfect if you’re comfortable doing basic fabrication work like trimming hose lengths and replacing fittings. If you have an older truck and don’t want to invest a fortune in components, this offers good value for the money.

Not Ideal For

Those who expect everything to work perfectly out of the box will be frustrated by the fitting quality. If you’re not comfortable sourcing replacement parts or doing minor modifications, you’ll want to spend more on a premium kit. Also, if you demand the highest quality components regardless of price, the Fleece kit is the better choice.

6. Mishimoto Thermal Bypass Valve Kit – Best for Transmission Cooling

Transmission temperatures can be a limiting factor when towing heavy with your Ram 6.7L. Mishimoto’s thermal bypass valve kit addresses this by improving coolant flow to the transmission cooler. I’ve been running this kit for two years now, and the difference in transmission temperatures is significant—especially during summer towing season.

Real-world testing shows transmission temperature reductions of 15-50 degrees compared to the OEM bypass valve. During a recent trip through the mountains pulling 14,000 pounds, my transmission never exceeded 195 degrees, whereas it would previously climb to 220+ on similar grades. The kit uses a 160-degree thermostat that opens earlier than stock, allowing coolant to flow through the transmission cooler sooner and more often.

Installation is one of the easiest among all the kits in this guide. The quick-connect fittings make it a straightforward job that can be completed in under an hour. Mishimoto includes a serviceable thermostat that can be swapped out depending on your climate—perfect for those of us who live in areas with extreme seasonal temperature variations. The lifetime warranty provides additional peace of mind, though I should mention some quality control issues that other customers have experienced.

The thermostat system isn’t without its problems. Some users have reported multiple thermostat failures requiring replacements. I personally haven’t experienced this, but it’s worth noting. The kit can also run too cool in cold climates—my transmission takes longer to reach operating temperature in winter, which isn’t ideal for transmission longevity. For extreme cold weather applications, you might want to consider the thermostat bypass option that allows constant flow regardless of temperature.

Best For

Heavy towers who push their trucks hard in warm weather conditions. If you’ve ever had to back off the throttle because of transmission temperatures, this kit is a game-changer. It’s especially valuable for those towing in hilly or mountainous terrain where grades keep transmission temperatures elevated. The easy installation makes it accessible for DIY mechanics of all skill levels.

Not Ideal For

Owners in extremely cold climates may find that their transmission runs too cool, which can cause its own issues. If you do a lot of short trips in winter where the engine never fully warms up, this kit might exacerbate that problem. Also, if you’ve already had issues with thermostat failures in other Mishimoto products, you might want to consider a different brand.

7. GXP Black Intercooler Pipe Kit – Best Intercooler Upgrade

The factory intercooler pipes on early 6.7L Cummins trucks are plastic and prone to cracking under boost pressure. Replacing them with aluminum pipes is a smart upgrade, and the GXP kit offers excellent value. I installed this on my 2008 Ram 2500 three years ago, and it’s been trouble-free since day one.

Performance-wise, the larger diameter pipes improve airflow compared to the restrictive OEM design. While I haven’t dyno tested the difference, throttle response feels slightly improved, especially at higher boost levels. The real benefit is reliability—no more worrying about plastic pipes cracking under boost. The aluminum construction with bead-rolled ends ensures the boots stay securely attached even at high boost pressures.

The value proposition here is hard to beat. Comparable kits from name-brand manufacturers cost $300-400, while this GXP kit offers similar performance for a fraction of the price. I’ve compared it side-by-side with expensive alternatives, and the construction quality is comparable. The black powder coating looks professional under the hood, though I should mention some quality issues with the finish.

Speaking of the powder coating—this is where GXP cut corners to hit their price point. The coating scratches easily, revealing bare metal or blue anodizing underneath. My kit arrived with some scratches from shipping, and the coating has continued to flake off over time. It doesn’t affect functionality, but if you’re particular about under-hood appearance, you might want to repaint these pipes before installation. The silicone boots are also grey instead of black, which looks a bit odd but doesn’t affect performance.

Best For

Owners of 2007.5-2009 Ram trucks who want reliable intercooler pipes without spending a fortune. This kit is perfect if you’re running increased boost levels and have concerns about the factory plastic pipes failing. It’s especially valuable if you plan to add nitrous or methanol injection later, as the extra ports provide convenient mounting points.

Not Ideal For

Those who demand perfect fit and finish might be disappointed by the powder coat quality. If you’re building a show truck and every detail needs to be flawless, you’ll want to invest in a premium kit. Also, this kit only fits the 2007.5-2009 model years, so owners of newer trucks will need to look elsewhere.

8. Fleece Performance Fuel Filter Delete for 2003-2007 5.9L Cummins – Best Fuel Filter Delete

While this guide focuses on 6.7L Cummins engines, many of us own or work on 5.9L trucks as well. The Fleece Performance fuel filter delete for the 5.9L Cummins is worth including because it’s simply the best on the market. I’ve installed dozens of these over the years, and the quality and fitment are consistently excellent.

When you install an aftermarket lift pump like a FASS or AirDog, you no longer need the factory fuel filter housing. This delete plate cleans up the engine bay significantly by removing that bulky assembly. The Fleece plate provides multiple ports for fuel pressure gauges or other accessories, which is a nice touch for those of us who like to monitor our fuel systems closely.

Installation couldn’t be easier—it bolts directly to the factory location using the existing mounting points. Fleece includes quality hardware and the fitment is perfect every time. The stainless steel construction looks professional and won’t corrode over time. While some complain about the price for what is essentially a machined aluminum plate, the quality and customer service from Fleece justify the cost in my opinion.

Best For

Owners of 2003-2007 Dodge trucks with the 5.9L Cummins who are installing aftermarket lift pumps. This is a must-have if you’re upgrading your fuel system, as it eliminates the redundant factory filter housing. It’s especially valuable if you want to run fuel pressure monitoring, as the multiple ports make installation clean and simple.

Not Ideal For

Those still running the stock lift pump will want to keep their factory fuel filter housing. Also, if you’re on a tight budget, there are cheaper alternatives on the market—though in my experience, they don’t match Fleece’s quality and fitment.

9. Fleece Performance Fuel Filter Delete for 2010-2018 6.7L Cummins

The 6.7L version of Fleece’s fuel filter delete serves the same purpose as the 5.9L version—it eliminates the factory fuel filter housing when you upgrade to an aftermarket lift pump. I’ve installed this kit on several 2010-2018 trucks, and while it works as intended, it has more quirks than the 5.9L version.

The quality is still there—Fleece uses the same stainless steel construction and precision machining. The plate cleans up the driver’s side of the engine significantly once that bulky factory housing is removed. Installation is straightforward, though I’d recommend cutting off the old bracket rather than trying to remove it entirely, as many customers have found this approach works better.

Where this kit falls short compared to its 5.9L counterpart is in the details. Several customers have reported leaks from the water in fuel sensor plug, which is frustrating on a component at this price point. Missing washers have also been an issue—check the hardware carefully before starting installation. The lack of instructions is another annoyance, especially for first-time installers.

Best For

2010-2018 Ram 6.7L owners who are installing aftermarket lift pumps and want to clean up their engine bay. If you’re upgrading your fuel system with a FASS, AirDog, or similar pump, this delete plate completes the installation professionally.

Not Ideal For

Those who expect perfection out of the box might be disappointed by the quality control issues. If you’re sensitive to minor leaks or fitment problems, you might want to consider other options. Also, make sure you actually need this—if you’re keeping your stock lift pump, you’ll still need that factory filter housing.

10. FASS Fuel Filter Housing Delete for 2010-2018 6.7L Cummins

FASS is one of the most respected names in diesel fuel systems, and their fuel filter housing delete for the 6.7L Cummins reflects their expertise. This kit goes a step beyond simple delete plates by incorporating the water in fuel sensor port and an additional return port for those running dual CP3 injection pumps.

The key advantage of this kit is that it prevents false water in fuel lights, which can plague some delete plates that don’t properly accommodate the WIF sensor. FASS has engineered this to maintain factory sensor functionality while eliminating the bulky factory housing. The dual CP3 return port is a thoughtful addition for those building high-horsepower trucks that need additional fuel supply.

What gives me pause is the limited review count—only two reviews at the time of writing. While both are positive, I’d like to see more long-term feedback before giving this my full endorsement. FASS is a quality brand, and the construction appears solid, but the lack of real-world testing data is worth noting.

Best For

Those running dual CP3 setups who need the additional return port. If you’ve had issues with false water in fuel lights after installing a delete plate, this kit’s proper sensor integration should solve that problem. FASS brand loyalists will appreciate the quality construction.

Not Ideal For

Early adopters who prefer products with extensive proven track records might want to wait for more feedback. If you’re running a single CP3 and don’t need the extra return port, you’re paying for features you won’t use. Also, if budget is a concern, simpler delete plates are available for less money.

11. Fel-Pro EGR Gasket Set – Best Gasket Kit

Whether you’re deleting your EGR system or just servicing it, quality gaskets are essential. Fel-Pro has been making gaskets for decades, and their EGR gasket set for the 6.7L Cummins is excellent. I’ve used this kit multiple times when working on customer trucks, and the fitment is always perfect.

The kit includes all the gaskets needed for a complete EGR service, plus some extras depending on your model year. Fel-Pro quality matches or exceeds OEM specifications, which is exactly what you want in a critical sealing application. The last thing you need is an exhaust leak because of a cheap gasket, and Fel-Pro delivers reliability here.

One minor complaint is that the kit doesn’t include the coolant hose O-rings that some expect for a complete EGR service. You’ll want to source those separately if you’re replacing the coolant lines. Also, some years may not use all the included gaskets, but I’d rather have extras than be short one.

Best For

Anyone servicing their EGR system, whether deleting or repairing. If you’re removing your EGR system, you’ll need gaskets to seal the block-off plates properly. If you’re repairing a leaking EGR cooler or valve, this kit has everything you need for a quality repair that should last the life of the truck.

Not Ideal For

Those expecting a complete EGR delete kit will be disappointed—this is just gaskets. Also, if you’re doing a full delete and have block-off plates that came with their own gaskets, you might not need everything included here.

12. Dorman EGR Service Kit – Complete Service Solution

Dorman’s EGR service kit is an excellent alternative to the Fel-Pro option, and in some ways it’s more comprehensive. The kit includes everything needed for a complete EGR service, plus thoughtful additions like rubber stoppers for cleaning the EGR cooler. I’ve used this kit several times and appreciate the attention to detail.

What sets this kit apart is the inclusion of all necessary O-rings—something the Fel-Pro kit lacks. The rubber stoppers for EGR cooler cleaning are a nice touch that shows Dorman understands how these systems are actually serviced. Quality is on par with OEM, and the price is excellent compared to dealer pricing for individual gaskets.

The comprehensive nature of the kit means you might not use every gasket depending on your model year. That’s not really a negative—I’d rather have extra gaskets than come up short. At this price point, having a few leftovers is no big deal.

Best For

Those doing a complete EGR system service who want the most comprehensive kit available. If you’re cleaning your EGR cooler (which you should if it’s still installed), the included rubber stoppers make that job much easier. The inclusion of all O-rings makes this a true one-stop solution.

Not Ideal For

If you’re doing a full delete and already have gaskets with your block-off plates, you might not need this comprehensive of a kit. Also, those who prefer to buy OEM gaskets from the dealer might want to stick with factory parts for warranty reasons.

How to Choose the Best EGR Delete Kits for 6.7L Cummins in 2026?

Choosing the best EGR delete kits for 6.7L Cummins engines requires understanding your specific needs and truck configuration. Let me break down the key factors you should consider before making a purchase.

Year-Specific Fitment Guide

The 6.7L Cummins has gone through several significant changes over the years, and not all components fit all models. Here’s what you need to know:

2007.5-2009: These early trucks have unique intercooler pipe configurations and EGR system layouts. If you own one of these models, pay close attention to fitment descriptions. The GXP intercooler pipe kit mentioned earlier is specifically designed for these years.

2010-2012: This generation represents a transition period with its own specific components. The SPBREW intake manifold for these years addresses the unique mounting points and sensor locations of this generation.

2013-2018: These are the most common trucks on the road, and most components are designed for this range. The SPBREW 2013-2018 intake, Fleece coolant bypass, and Mishimoto thermal bypass valve all target these years specifically.

2019-2021: Limited components are available for these years due to emissions requirements. Many owners of these trucks opt for tuner-only solutions rather than physical deletes.

2022+: These trucks require ECM replacement for full deletes, which is a significant undertaking. Most owners stick with minor modifications or keep the truck stock for emissions compliance.

Component Types Explained

When shopping for EGR delete components, you’ll encounter several different types. Understanding what each does will help you make informed decisions.

Intake Manifolds with Grid Heater Upgrades: These replace your entire factory intake manifold, eliminating the grid heater bolt failure risk while improving airflow. The SPBREW kits fall into this category. These provide the most comprehensive upgrade but also cost more and require more installation time.

Grid Heater Delete Kits: These focus specifically on replacing the grid heater assembly without changing the intake manifold. The BD Diesel Killer Grid Heater is an example. These are less expensive than full intake manifolds but don’t provide the airflow benefits.

Coolant Bypass Kits: These address the rear cylinder cooling issue by rerouting coolant flow. The Fleece and LAIKOU kits mentioned earlier serve this function. These are essential for high-performance applications or heavy towing.

Intercooler Pipes: These replace the factory plastic pipes with aluminum to prevent failures under boost. The GXP kit is a good example. These are relatively inexpensive and provide reliability benefits with minimal performance gain.

Supporting Components: Gaskets, delete plates, and hardware complete your installation. The Fel-Pro and Dorman kits mentioned ensure proper sealing and professional results.

Tuner Requirements

One critical point that many first-timers miss: you need a tuner to safely delete your EGR system. Simply removing components without tuning will result in check engine lights and potentially poor engine performance. Popular tuning options include:

EZ Lynk: Easy-to-use smartphone-based tuning with excellent support. Great for those who want something user-friendly.

EFI Live: Professional-grade tuning with extensive customization options. Best for those who want to fine-tune every parameter.

Mini Maxx/V2: Traditional in-cab tuner with multiple power levels. Popular choice for its simplicity and proven track record.

Expect to spend $600-1,200 for a quality tuner, depending on the brand and features. This is a non-negotiable expense if you’re deleting your EGR system—don’t cheap out here.

Installation Difficulty and Time Estimates

Be realistic about your mechanical skills before choosing components. Here’s what you can expect:

Easy (1-2 hours): Intercooler pipes, transmission bypass valve. Most DIY mechanics can handle these without issues.

Medium (3-5 hours): Coolant bypass kits, fuel filter deletes. These require more mechanical knowledge and some specialized tools.

Advanced (5-8 hours): Intake manifolds, grid heater upgrades. These involve significant disassembly and should not be attempted by inexperienced mechanics.

If you’re not comfortable with any of these installations, budget $400-800 for professional installation. A properly installed component is far better than a poorly installed DIY job.

Frequently Asked Questions

Final Thoughts on the Best EGR Delete Kits for 6.7L Cummins

After years of working with 6.7L Cummins engines and testing countless components, the SPBREW intake manifold kits stand out as the best overall value for most owners. They address the critical grid heater bolt failure risk while providing performance benefits through improved airflow. The fact that they cost half as much as name-brand alternatives while delivering similar results makes them an easy recommendation.

For those focused on cooling system reliability, the Fleece coolant bypass kit is worth every penny. The 25% temperature reduction and freeze plug prevention provide genuine benefits for heavy towers and high-performance applications. If budget is a concern, the LAIKOU coolant bypass offers similar functionality at a fraction of the price—just be prepared to upgrade the fittings.

Remember that EGR deletion is a significant modification with legal implications. These components are intended for off-road, agricultural, and racing applications only. If your truck sees street use in an area with emissions testing, you’ll want to carefully consider the risks before proceeding.

Whatever components you choose, invest in quality tuning and don’t rush the installation. A properly installed delete system will provide years of reliable performance, while cut corners will come back to bite you. The best EGR delete kits for 6.7L Cummins engines are the ones installed correctly with attention to detail—take your time and do it right.