I would have to agree with Jack..... my custom tunes with the Gryphon have eliminated the K&N drone with perhaps the exception of under WOT. But when that occurs things happen so fast ya won't notice any drone 
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Never argue with an idiot. He'll drag you down to his level and then beat you with experience!!!
'05 F150 FX4 SCAB
K&N FIPK
Magellan Navigation System
Full Boar Performance SIDO exhaust
Gryphon PHP Programmer w/ custom tunes
4UCam wireless backup cam
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