Well presented and factual reply!My response to your question is NO, unless it is done for for better air flow needed due to other mechanical changes that require more air flow than your stock system can supply.
Every snake oil salesman promises improved HP if you buy their gadget. The only real effect that most of the gadgets have is to make your wallet lighter, which in it's self will improve your MPG because your engine will not be pulling around so much weight, or maybe it just averages out :lol: .
You can't get any colder air than the stock system is capable of supplying. In fact, if it is taking it's air from under the hood it is a HOT air intake not a Cold air intake. The KN design is intended to provide better air flow than a stock paper filter. Unless you have modified your engine to require more air at wide open throttle, the stock system is capable of supplying all the air your stock engine capable of choking down. Besides that, if you live in a cold area of the country, the stock system is designed to preheat the air for better cold start and run characteristics. When the air is cold outside, you need the preheat in order to help the fuel vaporize before getting to the cylinders otherwise it doesn't burn efficiently, it just gets spit out the tail pipe. It is also possible to cause icing inside the intake under certain air temperature and moisture conditions, preheat also prevents that and on some engines they have added a plate to the intake that runs the hot water from your cooling system through it to reduce the possibility of intake icing, (it's not there to cool the intake). Not all those systems attached to your engine are for pollution control and even modifying those can have a negative effect.
So what I'm trying to say is that before you just randomly remove things that the factory engineers designed, you need to spend some time understanding the system, what it is designed to accomplish and what the positive vs negative effects are of modifying them. I know that response won't win many popularity contests, but it's true.
Not trying to burst your bubble, just trying to get you to think /emoticons/[email protected] 2x" width="20" height="20" /> .
Good luck no matter what you do to your truck.