57-0686 K&N Performance Air Intake System, 2004 - 2013 Ford Focus / Fiesta Ford 150 K&N® premium oil filters are

K&N® premium oil filters are meticulously engineered to offer outstanding filtration and engine protection

Tensioner Pulley (Main Drive) (Steel) Apr 2006 - Jun 2006

it actually redirects airflow inside the filter to pull in more air through the side pleats for even greater performance efficiency

Idler Pulley A/C (Steel) Jun 2013 - Oct 2017

8L45 / 8L45-E

57-0686 K&N Performance Air Intake System, 2004 - 2013 Ford Focus / Fiesta Ford 150 K&N® premium oil filters areOVERVIEW K&N 57i Series induction kits are specifically designed for each different vehicle and will free your car from the size restriction that comes with the factory air box. These economical kits can take a variety of different forms based on vehicle characteristics and available space under the hood. Each kit is designed to provide power throughout the RPM range. The filter is either directly attached to the engine carburetor or throttle body or