Not sure which 2009 Lexus IS 350 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 replaced the factory air filter with an K&N replacement filter. Great fit and finish. Better gas mileage and acceleration." —Jeff N from Madison, AL bought a K&N Air Filters for a 2009 Lexus IS 350.