new to the diesel thing, just wondering if someone can tell me what i will benifit from doing an egr delete, where to have it done, and roughly what i should be paying? Ive heard about PDR and BD????

 

egr= exhaust gas recirculation. Its purpose is to reduce NOX. In a diesel engine, the exhaust gas replaces some of the excess oxygen in the pre-combustion mixture. So by deleting or not letting it open you should get more air for combustion.