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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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Thread Tools | Display Modes |
#2
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I've heard great results from e-fans but I have never had a set myself. Personally, I would go with an underdrive pulley kit. Neither kit actually gives you more horsepower but they free up prexisting power that was lost from the fan or the other belt driven accessories.
Your tunes will not need to be adjusted by adding either one of the options.
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