Originally posted by patch21:
I did a search on this and half the threads had been deleted. I just got my X a month ago and I'm looking at getting a cold air intake by K&N. How much would this improve performance such as horsepower/gas mileage and is it worth the $$$? A friend of mine has a Ford Escape and he said his gas mileage improved by about 5-6 mpg after he installed a new air intake. Thanks for your time!
I may stir the pot here, but I think the money could be spent more wisely. The stock intake gets air from the driver side fender well. The intake has a series of baffles for quietness and keeping rocks and little kids out.
The K&N helps out at higher RPM. It doesn't do much for you at lower rpm.
It also depends on why you want a "better" intake. Are you using your x for a daily driver, off road vehicle or what.
If you check by doing a search on this forum for K&N, I think you will find most report no real gain in mileage by putting in a K&N. Also look at K&N's published dyno results.
There are some pros and cons on the filtration ability of the K&N. At best, I would put in a K&N stock filter replacement and bypass the cold air intake.
OK, I have my Nomex suit on........