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1997 to 2003 F-150
4.2L, 4.6L, and 5.4L equipped F-150s.


 
 
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  #7  
Old Wed, February 16th, 2011, 05:59 PM
Bigwheel Bigwheel is offline
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Join Date: Feb 2010
Location: Birmingham, Alabama
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Just for the record I love my Gryphon. No real MPG savings but tons of fun

Question: With the 87 custom performance tune how much is the average increase in horse power?
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2002 F150 Screw 5.4L
K&N CAI, Gryphon Programmer,
True Dual Magnaflow Exhaust
 


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