K&N Custom Air Filter - Round 6.25in OD 5.25in ID 3.25in H - E-3340 fits_2016-2018`Ford`Focus`RS We are continuously developing new

We are continuously developing new products to satisfy customers worldwide

or slip when cutting

this system produced 12 horsepower and 16 lbs

The revolutionary ATX12 Lithium RE-START Battery intelligently monitors its status

Tinted Button Protector: Added protection against scratches oil and moisture

K&N Custom Air Filter - Round 6.25in OD 5.25in ID 3.25in H - E-3340 fits_2016-2018`Ford`Focus`RS We are continuously developing newK&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 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your