Keep your motor’s lungs fed with clean, energy-rich oxygen from the “the world’s best air filter”—K&N Air Filters. Constructed from pleated sheets of oiled cotton gauze, these air filters strip away grime without blocking airflow. Fully reusable. Million Mile Limited Warranty.
Put to rest the ghosts of paper air filters past by exorcizing your air system with a Spectre Air Filter. Masterfully constructed from pleated cotton gauze, these performance air filters trap dirt while still allowing energy-rich air to blast through. Reusable. Lifetime Warranty.
When you equip your engine bay with an aFe Air Filter, you’ll never need another performance air filter in your ride’s life. aFe expertly crafts your automotive air filter from high-quality cotton gauze to trap grime without blocking airflow. Cleanable and reusable. Lifetime Warranty.
Not sure which 2003 Acura RSX Air Filters - Custom Fit is right for you? We have over 14143 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:
"I can't honestly say there is a noticeable improvement in performance (other than a placebo effect)however for what it worth the engine sound is much more pleasing to the ear." —Mark W from Lake Worth, FL bought a K&N Air Filters for a 2003 Acura RSX.
"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.
"I recently installed K&N cold air intakes on my Jeep Wrangler as well as the Infiinity that my wife drives along with an air filter on my daughters Acura. K&N products are the best there is. I will only install K&N products on all of my vehicles." —John K from Santa Clara, UT bought a K&N Air Filters for a 2003 Acura RSX, 2.0L 4-cyl. engine.
"I've got one in every car I own. They provide an improved throttle response and increased gas mileage." —T H from Columbia Heights, MN bought a K&N Air Filters for a 2003 Acura RSX.