Optimize your 2006-2011 Honda Civic 1.3L with this Engine and Cabin Air Filter combo designed to improve engine performance and cabin air quality. The activated carbon Cabin Air Filter (9.21" x 8.86" x 1.18") traps dust, pollen, and odors, providing a fresher cabin environment. The Engine Air Filter (7.36" x 7.01" x 1.43") enhances airflow to the engine, promoting fuel efficiency and engine longevity. This custom-fit filter set ensures easy installation and long-lasting protection, keeping your Honda Civic running smoothly and your interior air cleaner.