I had your similar worries also before my installing my Gryphon 1 week ago to date. Custom tunes on order of course. I have a 08 Screw 5.4l with CAI and Catback true duals. Canned tune #2 should be fine to start. Made a huge difference with the shift points of the transmisson and I can really feel the power gain throughout the gear now. The only issue I have is when I'm going through town with a speed limit of 35 -45 or just slower speeds in general. It almost feels like a carb vehicle would when loaded up with fuel. In short in bogs a second, burns loadedup fuel, then takes off. Don't get me wrong. Its not a problem so much as it is just annoying. Talked to Bill and he said no problem and that he had heard of a few doing that, if yours would at all that is. Hope this helped.
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Fri, October 14th, 2011, 01:38 PM
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