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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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#4
Thu, December 30th, 2010, 10:55 PM
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Exhaust is finally done! Totally rocks, sound is very subtle and deep at idle, very quiet at highway speed, and like an angry gas fed demon when you put your foot into it. I'm also seeing +3 mpg with 87 custom performance tune on the short drive home from the shop. I have a longer drive to go to a new years get together tomorow so I'll have a better idea of the milage then.
Joe 
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