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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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#3
Mon, August 30th, 2010, 10:08 PM
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Ticopowell has it pretty much nailed on the CAI issue. Having a custom tune written for it makes the intake safe. The only problem I'm seeing is a chance of running 87 octane on a 89 tune or 91 octane on a 93 octane tune. You can run fuel that is a higher octane but not lower. What you could do is get a set of 87 and 91 octane tunes and if you ever fill with the higher grade stuff you just add 1 to the timing.
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