Thread: 60 MPH = 15.5 MPG
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  #30 (permalink)  
Old 03-25-2008, 10:43 PM
haulin99spd haulin99spd is offline
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Join Date: Jan 2008
Posts: 79
i have 99 f350, the best gains i've seen are 30.mpg. gotta flip chip(hot tunes)
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