Are Deleted Trucks Legal?

Deleted trucks refer to trucks that have had their emissions control systems removed or modified. While they may have improved performance and fuel economy, they also produce more air pollution. They are less safe than trucks with emissions controls. This article discusses the risks of deleted trucks and the importance of emissions control systems.


Risks Associated with Deleted Trucks

Deleted trucks have several risks, including increased air pollution, lowered fuel economy, and reduced safety. By removing the emissions control systems, deleted trucks can release pollutants like nitrogen oxide into the atmosphere, contributing to smog and negatively impacting public health. They can also harm the environment by contributing to climate change. Additionally, deleted trucks are often much louder than stock trucks, leading to complaints from neighbors and increased ticketing from law enforcement.

Why Are Deleted Trucks Illegal?

Under the Clean Air Act, modifying a vehicle’s emissions control system is illegal. The Environmental Protection Agency (EPA) estimates that deleted trucks produce hundreds of thousands of tons of excess nitrogen oxide each year, contributing to smog and adversely affecting public health. In addition, deleted trucks can also negatively impact the environment by contributing to climate change. As a result of these concerns, the EPA is working to crack down on modified vehicles and promote the use of cleaner, more environmentally-friendly trucks.

Can a Dealer Sell a Truck With DPF Delete?

It is illegal for a dealer to sell a truck with a diesel particulate filter (DPF) deleted. Purchasing a deleted truck from a dealer can result in legal consequences, and you may be able to sue the dealer for selling an illegal vehicle. Additionally, you may be able to revoke your acceptance of the vehicle and return it to the dealer. Suppose you have purchased a deleted truck from a dealer. In that case, you may also be able to sue for the cost of putting the emissions equipment back on the truck and damages under the Fair Business Practices Act.

What Does Deleting Your Truck Do?

Deleting a diesel truck involves removing the DEF system, catalytic converter, and DPF and installing a new exhaust. The engine control unit (ECU) must also be reprogrammed using a tuner. While deleted trucks can have more power and better fuel economy, they also produce more emissions. It’s essential to weigh the pros and cons before modifying your vehicle.

Fines for Deleted Trucks

The EPA has the right to assess civil penalties of up to $37,500 per day for significant violations related to emissions control systems. Even minor offenses can result in fines of up to $7,500 daily. In addition to potential legal penalties, deleted trucks are often much louder than stock trucks, leading to complaints from neighbors and increased ticketing from law enforcement.

The Lifespan of a Deleted 6.7 Cummins

A 6.7 Cummins engine that has been deleted can last for 300,000 miles or more, assuming it is properly maintained and not used for extended idling or heavy towing. Deleting the engine removes the EGR and mechanical emissions components, which can stress the engine. However, if the engine is maintained correctly, it should last hundreds of thousands of miles without major issues.

Should I Delete My 6.7 Cummins?

If you’re considering deleting your 6.7 Cummins, there are some things you should know. Deleting the DPF and other emissions systems can prevent clogged filters, reduce maintenance costs, improve performance, and increase gas mileage. However, it is essential to consider the risks associated with deleting the DPF, such as voiding your warranty or damaging your engine. Before deciding, it is necessary to do your research and weigh the pros and cons carefully.

Should I Delete My 6.7 Powerstroke?

Deleting the DPF may be a great option to improve the performance and reliability of your 6.7 Powerstroke. The DPF, or diesel particulate filter, captures soot and other particulates in the exhaust system. However, it can also restrict airflow and hurt performance. Additionally, it creates a lot of back pressure in the exhaust system, which hurts the efficiency and reliability of the turbocharger. Therefore, deleting the 6.7 Powerstroke DPF is a viable option for performance and reliability.

Is Removing DPF Filter Illegal?

The DPF is a required emissions control device on all new diesel cars. It is designed to capture and remove soot and other particulates from the exhaust gas before releasing it into the atmosphere. However, it can negatively impact fuel economy and performance, prompting some drivers to have it removed. While it is illegal for drivers to use a vehicle with the DPF removed, it is not unlawful for garages to modify it. This means drivers who want to remove their DPF can do so without fear of legal repercussions. However, it is essential to note that removing the DPF will likely void the vehicle’s warranty.


While deleting a truck can offer some benefits, several risks, and drawbacks must be considered. Deleting the DPF can increase noise and pollution, void the warranty, damage the engine, and potentially subject drivers to hefty fines from the EPA. Therefore, before deciding, it is crucial to carefully research and weigh the pros and cons of deleting the 6.7 Powerstroke.

About the author, Laurence Perkins

Laurence Perkins is the passionate car enthusiast behind the blog My Auto Machine. With over a decade of experience in the automotive industry, Perkins has knowledge and experience with a wide range of car makes and models. His particular interests lie in performance and modification, and his blog covers these topics in-depth. In addition to his own blog, Perkins is a respected voice in the automotive community and writes for various automotive publications. His insights and opinions on cars are highly sought-after.