Thread: DIY Intake Mod 2004 F150 5.4 Screw
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Old 02-09-2009, 08:50 PM
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Furian
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You Keep What You Kill
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Originally Posted by ChargersFanInCO
lol...I'm sure your engine sucks more air now...So much more than the cylinders could possibly ever use, huh? Are you compressing that air? If not, then your cylinders aren't getting any more air than it would draw normally. If your engine wasn;t getting enough air to run when you floored it, then it would stutter, stammer, and die because your A/F mixture would be so lean it couldn't run at all.

CAI's are a WASTE OF MONEY. I'm positive Ford spent a little more money researching how to get the most air into their engines to make it fuel efficient, and have good power than a piece of PVC stuck into the run.
I installed a K&N CAI kit on my 2005 F350 5.4L yesterday and I experienced an immediate improvement in performance. I have posted several threads in the SD forum about my truck's lack of sufficient power but I can say without a doubt that the K&N CAI kit works!
 
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