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Message: [QUOTE="peixinho, post: 880012, member: 12240"] I don't believe in absolute but I will answer this as best I can. There are a lot of variables that go into this question. Let take any given truck with a descent sized injector and keep everything else the same... At idle egts will be the same... (duh lol) Around town with easy driving egts will probably be a little higher At WOT your egts will be much lower. Basically with a larger turbo you are changing how and when the turbo is most efficient. The stock powermax is smaller so it will usually be more efficient at less than 1700 rpms. The bigger 68mm will be out of its efficiency range. Between 1700-2000 rpms it is a toss up. They are both probably about equal. Above 2000 rpms the 68mm is going to flow much more air and cool off the egts. When I had my 175/stock and a stage 1 turbo my egts would get up to almost 1800 at WOT from 0-100. With my 175/stock and KC 68mm stage 3 turbo my egts would only get up to about 1350... it was a huge difference. My cruising egts went from about 700-750 to 750-800 with 175/stock Hope that helps [/QUOTE]

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