Not sure which 2003 Acura RSX Air Filters are right for you? We have over 12273 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:
"There was no noticable difference in sound or power. There was about a 3 mpg gain in gase mileage going from my old (30K miles) dirty paper filter to new and clean K&N." —Simon A from Alpharetta, GA bought a K&N Air Filters for a 2003 Acura RSX.