The K&N Drop-In Air Filter for Ford Focus C-MAX (OE size 281 x 190 mm) is a washable, reusable high-flow replacement that improves airflow and can help increase horsepower while protecting the engine. It installs directly into the factory air box as a drop-in unit for simple replacement. Backed by K&N's No-Hassle Lifetime Limited Warranty, layered, oiled cotton media captures contaminants while supporting airflow.
K&N Replacement Air Filter FORD FOCUS C-MAX 1.6 & 1.8 OE SIZE 281M X 190MM