DPF stands for Diesel Particulate Filter. This is a honeycomb construction made up of ceramic materials and is used to capture and store exhaust soot for emissions purposes. DEF stands for Diesel Exhaust Fluid and is made up of urea and deionized water, it's contained in a separate reservoir from the fuel tank and is injected into the exhaust stream for emissions purposes.

EGR stands for Exhaust Gas Recirculation. This system is used to recycle some of the exhaust stream back into the combustion chamber to reduce NOx by lowering the oxygen concentration in the combustion chamber.

These systems all hurt performance for the tradeoff of emissions. The DPF creates a restriction in the exhaust system which causes the engine and turbocharger to work harder.

The DEF system requires constant top up.

The EGR system recycles the exhaust fumes back into the combustion chamber limiting the amount of oxygen and causes power losses. These systems can also fail and allow engine coolant to mix with exhaust causing coolant to enter the combustion chamber which can lead to engine failure.

These systems all have their own flaws and are very costly to repair. Removing these systems allows the engine to perform better, increases fuel mileage, and can increase engine reliability.

These emissions systems should not be removed for street-use vehicles, check with local regulations for the legality of removing these systems.

The main downside to removing these systems is legality, you will need to check with local regulations for the legality of removing these emissions systems, generally, it is reserved for off-road and race use.

Removing the DPF system will increase the exhaust noise level and foul smell of diesel exhaust such as the pre-DPF systems used in older diesel vehicles.

The required items to remove or disable these emissions systems are a delete-capable race tuner. Currently, all the tuners listed on our website are delete-capable.

The DPF system will need to be physically removed from the exhaust system using a DPF-delete/Race pipe.

The DEF system gets disconnected with the installation of a DPF-delete/Race pipe, the tank itself can be left installed or removed.

Removal of the EGR system is optional, all our Race Tuners will disable the DPF/DEF/EGR systems but the EGR system can be left installed, fully removed, or the valve can be blocked off. You can find our EGR delete kits here.


Our main shipping warehouse is located in BC, Canada.

DPFtunes.com prides itself on quick and secure shipping. Most orders in stock will be shipped within 1-5 business days.
In rare occurrences manufacturing delays, lockdowns, back orders, and delays with carriers may extend this time. Please check our shipping and refund policies before placing your order.

Please also note that shipping time starts once the product has left our facility, and problems and delays with couriers are out of our control. Please contact ups directly for issues with your shipment.

Your order arrival time will vary based on location and shipping type chosen. We typically see delivery times between 10-14 days after we have shipped your order. Please check the expected time with UPS for more accurate timelines.

Warranty and Returns

DPFtunes.com warrants the Product against defects in materials and workmanship for a period of one (1) year from the date of original purchase. If a defect arises and a valid claim with photo is received within the Warranty Period, at its option, the manufacturer will repair the Product or exchange the Product with a functionally equivalent new product.

Repaired products and replacement products provided hereunder against defects in materials and workmanship from the date of the repair or replacement for ninety (90) days or, if longer, for the remainder of the Warranty Period. If the Product is exchanged, the replacement product becomes your property and the Product becomes manufacturer's property.

When a refund is given, the Product becomes manufacturer's property Please see here for more info https://dpftunes.com/pages/warranty

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. To start a return, you can contact us at Shipping@dpftunes.com. If your return is accepted, we’ll send you a return authorization number as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

Please see for more information https://dpftunes.com/pages/refund-policy

Tech Support

We do not offer technical support.

Although most items include installation instructions, they do require a certain level of mechanical and/or electrical knowledge to install, if you do not possess this knowledge you will need to have a local diesel shop install these products for you.

We always recommend having a diesel shop take care of the installation and setup process.