Step-by-Step Guide: How to Delete EGR on a 6.7 Cummins


The Exhaust Gas Recirculation (EGR) in your 6.7 Cummins plays a role in reducing emissions. It works by recirculating some of your engine’s exhaust gases back into its cylinders. While this component contributes to a greener environment, it may sometimes impact your vehicle’s overall performance.

If you aim to enhance your engine’s potential, deleting the EGR could be an option. SPELAB 6.7 Cummins EGR delete kit is a tool that can help achieve this. In this blog, we’re laying out the steps you’ll need to follow to accomplish the task. Safety and awareness are pivotal, so we’ll cover those as well.

Why Remove the EGR System?

You might wonder why you should even consider removing the EGR system. Well, it’s about performance. Deleting the EGR system using an EGR delete kit allows your engine to breathe easier. This could increase your vehicle’s horsepower and torque.

An additional benefit could be improved fuel efficiency. With the EGR system gone, your engine can fully optimize the use of fuel. This means you might see some savings at the pump over time.

Now, let’s talk about the long-term effects. The EGR system tends to recirculate exhaust gases, some of which contain soot. Over time, these soot particles can accumulate and lead to problems with your engine.

One important point to note is that an EGR system can produce heat. By removing it, you potentially lower the temperature under the hood. This could extend the lifespan of other vital engine components. So, the decision to delete the EGR system might just pay off in the long run.

Preparations Before You Start

Before we dive into the process, let’s get ready. Gather all necessary tools. A wrench, pliers, screwdriver, and a good quality SPELAB kit should be at your disposal. Having all your tools ready saves you time and makes the process smoother.

Safety should never be an afterthought. Protect your eyes with goggles. Hot fluids or small parts can cause serious injury. Wearing gloves will also protect your hands from potential burns or cuts.

It’s also crucial to ensure you’re working in a well-ventilated area. Vehicle parts can release harmful fumes. Breathing in these fumes can be dangerous, so ensure you have plenty of fresh air.

Finally, patience is key. Hurrying the process can lead to mistakes. A calm and steady approach will guarantee a job well done.

Detailed Guide on Deleting the EGR

Before anything, disconnect the batteries. Safety first.

The engine cover is next. Take it off. It’s your gateway to the EGR system.

Your target is the EGR system components. Detach these. Be careful not to damage them.

The EGR cooler follows. Disconnect this. Steady hands are needed here.

Then comes the climax – eliminating the EGR valve. This is the heart of your 6.7 Cummins EGR delete.

Remember, every step counts. Follow these diligently, and your EGR delete is within reach.

Just like that, your engine is freed from the constraints of the EGR system.

After EGR Removal

Post-EGR removal, you’re not quite done. Tuning is essential.

This phase is about adjusting your engine to the new setup. Your EGR delete 6.7 Cummins needs to understand its new reality.

Then, focus on safety and efficiency. Just because the EGR is gone doesn’t mean these take a backseat.

Keep an eye on your engine. Regular checks are crucial. Stay alert to any changes.

With care and attention, your engine will reward you. It’s all about striking a balance between power and maintenance.

Consequences and Risks of EGR Deletion

EGR deletion isn’t without risks. Legal issues top the list.

Emission laws vary. Your DPF delete pipe may not be street-legal everywhere. It’s crucial to know your local regulations.


Engine longevity and warranty are also in the balance. Will EGR deletion shorten engine life? Will it void your warranty? These questions need answers.

And not every vehicle benefits from EGR deletion. In some cases, it’s best to keep the EGR.

So, tread carefully. Balance the benefits with potential repercussions. A well-informed decision is always the best path forward.


We’ve gone through the how-to’s of the EGR deletion process. You’ve learned about the preparation phase, the actual removal, and what follows. It’s a task that requires care, patience, and a solid understanding of your vehicle’s engine.

So, why go through all this trouble? The answer lies in performance. A deleted EGR can offer enhanced horsepower, torque, and fuel efficiency. It’s an appealing proposition for many vehicle owners.

However, it’s not all roses. There are potential downsides to consider. One of these is the impact on emissions, as the EGR system reduces your vehicle’s carbon footprint.

Legal issues can arise too. In some regions, removing emission control devices is against the law. It’s essential to check your local regulations before proceeding.