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.
Not sure which 2009 Acura TSX 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:
"This filter was cheaper than my stock Acura Filter.
Although it says no need to keep replacing this and reusing, i probably will change it about every 30000 miles.
Nice build and quality." —Raghavendra L from Santa Clara, CA bought a K&N Air Filters for a 2009 Acura TSX, 2.4L 4-cyl. engine.