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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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Old Tue, August 30th, 2011, 08:49 AM
Slingwing 317 Slingwing 317 is offline
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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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