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Yep I agree on this one. I cant tell you how many times I have seen people mod up there diesel trucks with more boost and they fail miserably and those were even designed for boost. Point is every engine has its limitations and if someone is to add 150 extra HP ya better strengthen it internally or baby it.. For me on my NA 6.2, all I need is a professional tune and Long Tube Headers exhaust system and I will have a pretty good HP gain without loosing the reliability that I Love