I have a few questions which I hope someone can answer. With the EPA shutting vendors down, could a person go with the Banks derringer and install block off plates on the egr to lengthen the life of their truck and still have some power gain when they needed it? The other question is the tuning of the ecu thru the obd2 port compared to sending it in to get a reflash. Are they the same with the tunes changed or are there things that can only be done bench flashing compared to obd2? I have tried to figure this out and thought I’d ask people that are smarter than me. I have had the AEM upgrade done and do not like how the truck runs now.