Ensure your Subaru WRX is running at its peak performance with the ETS Replacement Air Filter. Designed to work seamlessly with the ETS Stock Turbo Intake System for the 2015-2021 and 2022-2025 models, this K&N filter is a must-have for any Subaru enthusiast. Keep your engine breathing clean and efficiently with this high-quality air filter that is sold individually for easy replacement. Don't let a clogged or dirty filter slow you down - upgrade to the ETS Replacement Air Filter today! And if we're out of stock, don't worry - we've got you covered with the K&N RU-2800 Air Filter alternative.