DPF DELETE can save your wallet. A DPF delete is the process of removing a vehicle's Diesel Particulate Filter (DPF) and resetting the computer system to operate without the component. This is done to overcome the stress of unclogging the filter regularly. However, DPF delete is illegal because of the hazard the absence of the DPF causes to the atmosphere. Violating the prohibition of removing the DPF can attract specific amounts as fines. DPF delete can increase engine horsepower, improve gas mileage, vehicle acceleration, and throttle response. However, it can also increase exhaust gas and particulate matter release. There are legal penalties for violating emission law.