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I put a K&N 63 series aircharger on my 5.4 3V and i can notice a big difference in throttle response. i get about 1 to 1.5 mpg better since i have a lead foot. it has a heat shield from the motor and it semms to work perfectly fine. i would get one anyway just because of the sound they make. best 250 dollars ive spent on my truck yet. i cant wait until my flowmaster comes in this week. definitely buy a k&n whatever you do
[QUOTE=WheelMA1]You should keep the stock setup (since it is a cold air style, and flows sufficiently), but use a thermal wrap on the entire assembly to shield it from heat soak. This will keep Ford happy, as well as provide a denser charge and increase power. Check out the results of this project from a few years ago: http://performanceunlimited.com/projectmpg/[/QUOTE]
I recently installed a K&N FIPK and I can't say for sure if I've gained any horsepower, but my throttle response definetly improved. I'm still researching what type of exhaust system I want to put on to hopefully help some more. If I wanted to have 500 hp I would have gotten a diesel.
I meant if I wanted an engine that I could get 500 hp out of with a number of mods I would have gotten a diesel. My point was that with the V10 you really cant get to much more power out of it.