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Power Strokes
6.7 Aftermarket
Stock Transmission Longevity
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[QUOTE="doo dah, post: 1460068, member: 22536"] I towed with GH extreme file with no issues, temps were good but I also didn't dog it. I tow the fiver at 65 because I don't want to risk a tire and no need to go faster but once in a while I need to pass someone so was always in hottest tune. After driving around today I'll say the GH engine file is sneaky fast and the T Y rant is angry fast. Seems to have more power but with a lot more smoke but I think that may come from the fact the trans tune seems to hold off downshifting until it is absolutely needed and that creates smoke. I haven't tried any real hard runs but running 65 and a little tap on the throttle will get you to 85 really quick without more than 30% pedal and no downshift from 6th. So far I like it. Not sure my transmission would hold up to a few hard dyno runs so I am going to hold off on that until I have $$$ laying around ready to buy a new one. [/QUOTE]
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