Thread: How?
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Old 02-12-2015, 01:31 AM   #12
Synyster

 
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Drives: 2006 F150 Lariat
Join Date: May 2010
Location: Florida
Posts: 1,665
You need a tune to get the autos fast, it's just how it is. Maybe do a set of 3.91's if you're worried about the overall warranty. Not sure if just gears would void everything though, but it'd help.
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