K&N Replacement Air Filter (33-2194) Ford > Focus > Mk2 2004-2010 > ST225 NOT A WATERPROOF DEVICE /

NOT A WATERPROOF DEVICE / Must be protected from the elements

This part has been developed in conjunction with our work on the BTCC championship winning Hyundai i30N's - read more here

Miscible with all commercially available motor oils and motor vehicle gear oils

F21 Chassis

K&N Replacement Air Filter (33-2194) Ford > Focus > Mk2 2004-2010 > ST225 NOT A WATERPROOF DEVICE /K&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's No Hassle Lifetime Limited Warranty. K&N drop in replacement filters are designed to install easily into your