Not sure which 2004 Subaru Impreza Air Filters are right for you? We have over 14810 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:
"great filter. great price and replacement for a cai. i could tell the difference once installed." —Sheldon V from La Mesa, CA bought a K&N Air Filters for a 2004 Subaru Impreza, WRX, 2.0L 4-cyl. engine.