K&N drop-in High‑Flow air filter for 2021–2023 Hyundai Elantra is a washable, reusable replacement designed to improve airflow and provide increased horsepower while protecting the engine from contaminants. Engineered for long life, K&N filters are intended to last the vehicle’s lifespan and install into the factory air box as a direct replacement, backed by K&N’s No‑Hassle Lifetime Limited Warranty.
K&N 21-23 Hyundai Elantra Replacement Air Filter