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2009 to 2014 F-150 3.5L, 3.7L, 4.6L, 5.0L, 5.4L, and 6.2L equipped F-150s. |
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I have another question about HP gains posted on the website. Are these gains rear wheel gains determined from Dyno testing? I have read extensively about the gains/advantages of other programmers and the Gryphon seems to have the greatest HP increases. Are these guys just that good or what?
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