I just bought my first diesel. I have a 2017 4th gen 6.7 2500. found out that the EGR is an evil corrupt. Can it be zeroed out by a tuner then put back for inspection. Or do I have do a delete. Where I live I don't think they do a full inspection on exhaust as further south they do as you live closer to NYC. If either way what tuner works best for the buck. I was told as long as I'm not using the truck as an all out performance. I can leave in the dpf. I don't mind since there's no soot and sulfur smell. Any info would be highly appreciated