![]() ![]() Since EGR increases the amount of PM that must be dealt with and reduces the exhaust gas temperatures and available oxygen these filters need to function properly to burn off soot, automakers have had to consider injecting fuel and air directly into the exhaust system to keep these filters from plugging up."įrom what I now understand, by eliminating the EGR with a blocker plate AND removing the DPF, performance and perhaps mileage should increase. The most common is particulate filters in the exhaust system that result in reduced fuel efficiency. "Stricter regulations on particulate matter(PM) call for further emission controls to be introduced to compensate for the PM emissions introduced by EGR. However I did not understand why EGR was implemented on newer diesel engines. I thought that using a EGR block plate might also be a good idea. I was reading through this thread because I'm considering a Turbo back 4" or 5" replacement for my 2007.5 LMM. PCV Reroute Block Off Plate by Fleece Performance Install: Chevy Duramax LML Race Truck - Duration: 7:33. ![]()
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