Not sure which 1999 Hyundai Elantra 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:
"The filter fit perfectly. I'm not seeing big differences in gas mileage, but the engine feels smoother." —Louis L from Elkridge, MD bought a K&N Air Filters for a 1999 Hyundai Elantra.