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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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#1
Thu, February 23rd, 2012, 03:02 PM
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87 or 93 Performance custom tune?
I have a 2007 5.4L F150 and will soon have the Gryphon. I have a K&N air intake system and a Dynomax Bullet true dual exhaust setup with x-pipe. I'm looking for the best bang for my buck. Please let me know the performance differences between the two and provide any recommendations you'd like. The cost of 87 vs 93 gas is not a factor in my choice either.
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