Let's start with the basics:. DPF stands for Diesel Particulate Filter. It is a filter in the exhaust system and its job is to scrub soot from the exhaust gases and store them in a canister. DEF stands for Diesel Engine Fluid. This is a urea-based fl

<p id="isPasted" style="margin: 0px 0px 8px; padding: 0px; box-sizing: border-box; color: rgb(85, 89, 98); font-family: sofia-pro, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Let&apos;s start with the basics:<p style="margin: 0px 0px 8px; padding: 0px; box-sizing: border-box; color: rgb(85, 89, 98); font-family: sofia-pro, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">DPF&#xA0;stands for Diesel Particulate Filter. It is a filter in the exhaust system and its job is to scrub soot from the exhaust gases and store them in a canister.DEF stands for Diesel Engine Fluid. This is a urea-based fluid that is stored in a tank and usually has a filler next to the diesel filler. This system works similarly to the DPF system and also scrubs soot and stores them in a canister in the exhaust system.&#xA0;Both systems will then burn off the excess soot by going into regen mode.EGR stands for Exhaust Gas Recirculation and this system takes a portion of the exhaust gas leaving the combustion chamber and redirects it into the intake system. The system does this to re-burn the exhaust gas and clean out more pollutants. &#xA0;All of these systems are part of the emissions systems in late model diesel vehicles and are required for road-legal vehicles.What are the downsides of these systems?Both systems have dirty exhaust gases flowing through them and are bound to get clogged by deposits. The DPF system being clogged will cause your truck to go into regen mode, which limits the power and speed allowed. The engine will then inject diesel into the chamber to super-heat it. (There have been fires reported from a truck in regen mode being parked on farm fields.)&#xA0;Both these emissions systems add extra heat into the exhaust and combustion chamber. The extra heat will reduce power and increase fuel consumption.&#xA0;<p style="margin: 0px 0px 8px; padding: 0px; box-sizing: border-box; color: rgb(85, 89, 98); font-family: sofia-pro, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Excessive idling of a diesel engine will cause these systems to clog faster. People who use their trucks for agricultural or race applications don&apos;t need to meet emissions standards. They would consider deleting their systems as a solution. This also comes along with the benefits of an increase in power, an increase in fuel economy and better reliability with lower maintenance costs.&#xA0;

What is a DPF/DEF/EGR and why would I delete it?

If you are exempt from these laws and want to get rid of these systems that came as stock on the vehicle from the factory, you will need to:. This recalibration will disable the EGR system. It will also disable the DPF/DEF/EGR error codes that would

<h1 id="isPasted">Tuner Depot does not condone removing emissions systems on a road-going vehicle. We would like to state that this is illegal in certain countries.</h1>If you are exempt from these laws&#xA0;and want to get rid of these systems that came as stock on the vehicle from the factory, you will need to:<ol><li>Recalibrate the PCM using a delete-capable tuner. (you must always install an emissions-off tune with all emissions intact and then remove emissions after successfully installing the tune)</li><li id="isPasted">Remove the DPF/DEF filters from the exhaust system.&#xA0;</li></ol>This recalibration will disable the EGR system. It will also disable the DPF/DEF/EGR error codes that would trigger a check engine light. &#xA0;The DPF/DEF system will then need to be physically removed from the vehicle. However, physically removing the EGR system is optional. &#xA0;The EGR system uses a heat exchanger to exchange the heat from the hot exhaust gases into the engine&apos;s cooling system by running the engine coolant through a radiator-like device. But, instead of regular air passing through it to cool the coolant, it has hot exhaust gases flowing through it to cool them down before they re-enter the combustion chamber.These systems can wear out, causing them to crack and leak engine coolant into the combustion chamber. This can cause a variety of issues, from poor running conditions to a blown engine. When the EGR system is functioning correctly it causes soot to buildup throughout the entire intake system, (which is a problem on all engines) but with Direct Injection engines such as Duramax, Powerstroke, &amp; Cummins, this soot will build up on the backside of the intake valves which leads to poor sealing, power loss and fuel efficiency loss.&#xA0;To summarize, you need:<ul><li><a class="fr-strong" href="https://tunerdepot.com/collections/race-pipes" rel="noopener noreferrer" style="margin: 0px; padding: 0px; box-sizing: border-box; font-family: sofia-pro, sans-serif; color: rgb(9, 140, 255); text-decoration: none;" target="_blank">DPF delete pipe</a>, or a DPF <a class="fr-strong" href="https://tunerdepot.com/collections/race-exhausts" rel="noopener noreferrer" style="margin: 0px; padding: 0px; box-sizing: border-box; font-family: sofia-pro, sans-serif; color: rgb(9, 140, 255); text-decoration: none;" target="_blank">delete exhaust</a></li><li><a class="fr-strong" href="https://tunerdepot.com/collections/race-tuners" rel="noopener noreferrer" style="margin: 0px; padding: 0px; box-sizing: border-box; font-family: sofia-pro, sans-serif; color: rgb(9, 140, 255); text-decoration: none;" target="_blank">A delete-capable tuner</a></li></ul><p style="margin: 0px 0px 8px; padding: 0px; box-sizing: border-box; color: rgb(85, 89, 98); font-family: sofia-pro, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">It would also be wise to add an <a class="fr-strong" href="https://tunerdepot.com/collections/egr-delete-kits" rel="noopener noreferrer" target="_blank">EGR delete kit</a><p style="margin: 0px 0px 8px; padding: 0px; box-sizing: border-box; color: rgb(85, 89, 98); font-family: sofia-pro, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;"> <p style="margin: 0px 0px 8px; padding: 0px; box-sizing: border-box; color: rgb(85, 89, 98); font-family: sofia-pro, sans-serif; font-size: 16px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Note: If you have any emissions-related messages being displayed on your dash, these will need to be cleared before tuning. &#xA0;No tuners will clear this code and once tuned it will be stuck there.&#xA0;BE SURE TO TAKE CARE OF THESE MESSAGES BEFORE TUNING.

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