The EGR system plays a critical role in reducing emissions in diesel engines. By rerouting a portion of the exhaust gases back into the intake manifold, it helps lower combustion temperatures and reduce harmful nitrogen oxide (NOx) emissions. This system is standard in modern diesel trucks from 1998 to 2025, including the 6.7L Cummins, 6.6L Duramax, and 6.0L/6.7L Powerstroke platforms.

What’s in a Factory EGR System?

The stock EGR system typically includes:

• EGR Valve – an electronically controlled valve that regulates exhaust gas flow

• EGR Cooler – cools the exhaust gases before reentry to reduce combustion temps

• EGR Tubes / Pipes – connect exhaust to intake

• Sensors – temperature, pressure, and valve position sensors monitor the system

• Solenoids and ECU control logic – control opening, closing, and flow rates

• Coolant lines – provide cooling to the EGR cooler

• Differential pressure sensors – used to measure flow and trigger CELs when things go wrong

This system works — but it’s also one of the most failure-prone parts of diesel engines. Many Duramax and Powerstroke owners experience EGR valve sticking, clogged coolers, sensor failures, and recurring check engine lights.

That’s why thousands of diesel owners choose to delete their EGR system — especially in trucks used for towing, off-roading, or commercial use.

What Happens After an EGR Delete?

Here’s where the transformation begins. Installing a SPELAB EGR Delete Kit simplifies the entire system, removing problematic components and optimizing engine airflow for better performance.

Major Changes After Deleting EGR:

After removing the EGR system, your engine:

• Up to 15% improvement in fuel economy

• Lower EGTs by 100–150°F

• Noticeable throttle response increase

• Cleaner engine internals and longer turbo life

• Complete elimination of fault codes

SPELAB EGR Delete Kit For 2010-2024 6.7L Cummins

Fits 2010-2024 Ram 2500 and 3500

$247.00

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SPELAB 2011-2025 6.7L Powerstroke Diesel EGR Delete Kit

Fits 2010-2025 Ford F250 F350 F450 F550

$198.99

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SPELAB 2017-2023 6.6L Duramax L5P EGR Valve Cooler Delete Kit

2017-2023 Sierra/Silverado 2500 3500 HD

$169.77

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Whether you're running a 2018 RAM 2500 with a 6.7L Cummins, a 2017 Silverado 2500HD L5P, or a 2005 Ford F350 6.0L Powerstroke, deleting the EGR system can restore lost performance and improve long-term reliability — especially when paired with a quality tuner.

Why You Need a Tuner?

⚠️ Important: Most modern diesel engines require tuning when deleting EGR

Without proper tuning, your ECU will still “search” for EGR system data. When those sensors and components are missing, your truck may:

• Trigger fault codes (like P0401, P0405, P2002)
• Enter limp mode
• Disable turbo boost or regen cycles

That’s why SPELAB strongly recommends pairing your EGR Delete Kit with a quality tuner.

Top Recommended Tuners for EGR Delete:

• H&S Mini Maxx V2

✔ Preloaded delete tunes

✔ On-screen monitoring for EGT, boost, DPF status

✔ Supports 6.7L Cummins, LML Duramax, 6.4L Powerstroke

✔ User-friendly for daily drivers and fleet operators

• H&S Mini Maxx V1

✔ Trusted classic for older diesel platforms

✔ Budget-friendly and reliable

✔ Still widely used on 2007–2012 Cummins and LMM Duramax trucks

• EZ Lynk

✔ Cloud-based tuning system with mobile app

✔ Works well on 2010+ 6.7 Cummins & Powerstroke

✔ Supports custom tuning packages from certified partners

• EFI Live

✔ Ideal for LMM and LML Duramax platforms

✔ Highly customizable with advanced user control

✔ Preferred by experienced tuners and racers

How to Use Your Tuner (Quick Start)

Once you’ve installed the physical components of your EGR Delete Kit, the next step is tuning your ECU to recognize the changes and disable emissions-related codes.

Here’s how easy it is to get started with most tuners (like H&S Mini Maxx or EZ Lynk):

• Step 1: Plug It In

Connect the tuner to your vehicle’s OBD-II port (usually under the dashboard near the steering wheel).

Turn your key to the ON position (don’t start the engine yet).

• Step 2: Select Your Tune File

Choose the preloaded delete tune that matches your setup (e.g., “EGR/DPF Delete – 6.7 Cummins”).

Some tuners like EZ Lynk will download files over WiFi via mobile app; others like Mini Maxx have them built-in.

• Step 3: Flash the Tune

Follow on-screen instructions.

The tuner will write new files to your ECU and disable DTC monitoring for removed sensors (P0401, P0405, etc.)

This process may take 5–15 minutes. Don’t interrupt!

• Step 4: Wait for Confirmation

The screen will show “Tuning Complete” or “Tune Successfully Installed”

You’re done! Start your truck — no check engine light, no limp mode, just clean performance.

💡 Bonus Tip: H&S Mini Maxx displays real-time EGT, boost pressure, and transmission temps, so you can monitor your truck’s health at a glance while driving.

What’s the Best Combo? Go Full Delete for Maximum Performance

If you’re serious about unlocking the full performance potential of your diesel truck— then a basic EGR delete is just the beginning.

The Full Delete Combo Includes:

✅ EGR Delete Kit – eliminate recirculated exhaust gases for cleaner airflow

✅ DPF Delete Pipe – remove restrictive diesel particulate filter for improved exhaust flow

✅ CCV Reroute Kit – stop crankcase vapors from entering your intake system

✅ Tuner – like H&S Mini Maxx V2 or EZ Lynk, preloaded with delete-ready tuning files

This full package is what diesel owners call the “go-to setup” for long-term durability, lower EGTs, better towing torque, and fewer maintenance headaches.

What Are the Benefits of a Full Delete Kit?

Benefit Impact

🚀 More Horsepower & Torque Up to +100 HP gains with tuning

⛽ Better Fuel Economy Up to 15% MPG increase reported

🌡️ Lower EGTs 100–200°F drop in exhaust temps

🔧 Simplified Engine Bay Fewer sensors, fewer failure points

🛠️ Less Maintenance No more EGR valve cleaning, DPF regens, or soot buildup

💨 Improved Throttle Response Especially under load or when towing

SPELAB Makes It Easy

We offer pre-bundled Full Delete Kits designed specifically for your engine — just choose your year, make, and model. Each kit includes:

• CNC-machined hardware
• High-temp gaskets and block-off plates
• Coolant reroute lines (if required)
• Detailed install guide + optional video tutorials
• Tuner with preloaded files (optional)

Final Thoughts: Is an EGR Delete Kit Right for Your Truck?

Have you installed an EGR Delete Kit on your truck?Did you notice an improvement in fuel mileage or throttle response?

Drop your story in the comments below — your experience might help another diesel owner make the right upgrade. And if you're still on the fence, our team is happy to answer questions and help you find the perfect setup for your build.

FAQ

Q1: Can I install an EGR Delete Kit without a tuner?

No — most modern diesel engines (especially 6.7 Cummins, LML Duramax, and 6.7 Powerstroke) require a tuner to prevent check engine lights and ensure proper ECU function. Without tuning, the truck may enter limp mode or run poorly.

Q2: Which tuner works best with SPELAB’s EGR Delete Kits?

We recommend the H&S Mini Maxx V2 for most builds, especially RAM and Duramax trucks. For cloud-based tuning, EZ Lynk is a top choice. All recommended tuners are tested for compatibility with our delete kits.

Q3: Will deleting the EGR improve fuel economy?

Yes — many users report a 5–15% MPG increase after removing the EGR system, especially when paired with a full delete kit and proper tuning. Your engine will breathe cleaner and run more efficiently.

Q4: Do I need to remove the DPF and CCV systems as well?

Not always. Some users delete just the EGR. However, for maximum gains in airflow, fuel economy, and reliability, we recommend a Full Delete Kit: EGR + DPF + CCV + tuner.

Q5: What trucks are SPELAB EGR Delete Kits compatible with?

We offer EGR delete solutions for most diesel platforms between 1998–2025, including:

Ford Powerstroke (6.0L, 6.4L, 6.7L)

RAM Cummins (5.9L, 6.7L)

GM Duramax (LB7 to L5P)

EcoDiesel & Sprinter 3.0L