How to Delete 6.7 Cummins - A Complete Guide Flashark

Deleting the emissions systems of a 6.7 Cummins engine is a debated topic among truck owners. While it may offer some benefits, such as improved performance and fuel efficiency, deleting these systems is illegal and poses significant environmental risks. In this article, we will explore the process of deleting a 6.7 Cummins engine, as well as the potential benefits and risks associated with it. Read on to learn about the nitty-gritty of this process.

What is a 6.7 Cummins Engine?

The 6.7 Cummins engine is a powerhouse of diesel engine that has been used in heavy-duty trucks since 2007. Known for its impressive torque and durability, it is a popular choice among truck owners and commercial truck drivers alike. However, with the ever-tightening emissions regulations, newer 6.7 Cummins engines are equipped with emissions systems that tend to be problematic and costly to repair. This has led many owners to consider deleting these systems to improve performance and reduce maintenance costs.How to Delete 6.7 Cummins - A Complete Guide

Process of Deleting:

First and foremost, it is essential to understand that deleting the emissions systems of your 6.7 Cummins engine will likely void your manufacturer's warranty. Moreover, this is illegal in many states and can result in fines and penalties. Therefore, it is important to weigh the potential benefits and risks carefully before proceeding with a delete.

Assuming you have decided to proceed with the deletion, the first step is to purchase a delete kit from a reputable manufacturer. These kits typically include all the necessary hardware and software to remove the emissions systems from your engine. You must choose a kit that is compatible with your specific 6.7 Cummins engine and follow the manufacturer's instructions carefully.

Once you have purchased your delete kit, you will need to remove the emissions systems from your 6.7 Cummins engine. This typically involves removing the diesel particulate filter (DPF) system, exhaust gas recirculation (EGR) system, and selective catalytic reduction (SCR) system. This is a complex and time-consuming process that may require specialized tools and expertise. Don’t forget deleting egr on 6.7 cummins.

After you have removed the emissions systems from your 6.7 Cummins engine, you will need to install the components of your delete kit. This typically includes a new exhaust system, new engine tuning software, and a device to monitor your engine's performance. However, it is important to follow the manufacturer's instructions carefully during the installation process to ensure everything is installed correctly.How to Delete 6.7 Cummins - A Complete Guide

Once you have completed the installation process, now you can test to ensure everything is functioning correctly. This may involve taking your vehicle to a diesel engine specialist for testing and tuning.

EGR Cooler:

The EGR Cooler is a part of the emissions system in a 6.7 Cummins diesel engine that helps reduce the amount of nitrogen oxide (NOx) emissions by recirculating a portion of the engine's exhaust gases back into the combustion chamber.

However, over time the EGR cooler can become clogged or fail, causing engine performance issues, increased emissions, and potential engine damage. Therefore, some truck owners choose to delete or remove the EGR cooler 6.7 Cummins engine.

Best Delete Kits for 6.7 Cummins in 2022:

If you are  looking to delete emissions equipment from your 6.7 Cummins engine, using a delete kit can be a great option. But with so many delete kits on the market, it can be hard to choose the right one.

Here are the top five best delete kits for 6.7 Cummins engines in 2022:

First on the list is the Head Stud Replacement Kit. This kit is essential for high-performance builds as it increases clamping force and reduces head gasket failure. It also includes all necessary hardware and gaskets for installation.

Next up is the Fleece Performance Engineering Delete Kit, which includes a race exhaust, EGR delete kit, and a tuning device. This kit is perfect for those looking for a complete solution to increase performance and eliminate emissions equipment.

The WEILEITE CV52001 Crankcase Kit is a great option for those looking to delete the crankcase ventilation system. It includes all necessary hardware and gaskets for easy installation.

For those looking to remove common rail injector tubes, the KIPA Common Rail Injector Tube Removal Tool is a must-have. This tool makes removing the tubes easy and efficient, saving you time and money on repairs.

Last but not least is another kit from Fleece Performance Engineering. Their Exhaust Brake Delete Kit is perfect for those looking to improve exhaust flow and eliminate the exhaust brake system. It includes all necessary hardware for installation.

Thus, using a delete kit is a great option for those looking to enhance performance and eliminate emissions equipment from their 6.7 Cummins engine. Each of these EGR delete 6.7 Cummins kits offers unique benefits and features, so be sure to choose the one that best fits your needs.How to Delete 6.7 Cummins - A Complete Guide


In conclusion, deleting the 6.7 Cummins engine can offer some benefits, including increased performance, improved fuel economy, and a cooler running engine. However, it is important to weigh these benefits against the potential drawbacks, including legal repercussions, increased emissions, and the possibility of voiding the manufacturer's warranty. Ultimately, it is up to the owner of the vehicle to decide whether deleting the emissions equipment is worth it for them. However, you must remember that being a responsible and environmentally conscious vehicle owner is vital for the health and well-being of our planet.

Egr delete kit

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