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Factory Emissions Systems Basics [DPF/DEF/SCR/EGR]

Emissions Systems Questions [DPF/DEF/SCR/EGR] for Tuner Depot

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

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

What do I need to delete my DPF/DEF/EGR?

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