K&N 57i induction kit developed for Mazda MX-5 (MAZDA MX-5 III) 1.8L engines (2005–2013), replacing the restrictive factory air box with a larger washable and reusable air filter and adapter hardware. The design increases airflow across the RPM range, extends service intervals up to 100,000 miles between cleanings, and includes K&N's No-Hassle Lifetime Limited Warranty. Note: 57i Series intakes are not legal for sale in California and similar states adopting California emission standards.
K&N 05-09 Miata Performance Intake Kit