Not sure which 2004 Ford Expedition Air Intake Systems are right for you? We have over 20796 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Easy install, around 2 hours; silicone sleeves are a little harder than you'd think to slip on the pipe; missing 1 part, K&N sent overnight, free. All in all, easy for a complete non-mechanic.
Instant increase in torque and overall power. Sounds great without being obnoxious. Only increased highway MPG about 0.5 mpg, but really increased city mpg. Before on car computer,would get 15.7 on highway, and drop to 15.2 in city, now get a constant 16 or 16.1 mpg.
Would recommend this to anyone. Also did a LOT of research, and Autoanything.com had the best price by at least $20 of any other retailer I could find, helpful people, easy, FREE, shipping. - MORGANTOWN, WV" —Jeffrey S from Lost Creek, WV bought a K&N 77 Series Metal Intake Kit for a 2004 Ford Expedition, 5.4L V8.