This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles.
COBB High Flow Filters are designed to permit very high flow rates, minimize restriction, maximize filtration and provide a long life filter. It uses proprietary Woven cotton and metal mesh with a precision molded rubber base.
Ford Focus ST Intake filter dual cone 791100
Ford High Flow Filter Focus ST 2013-2018, Focus RS 2016-2018
Washable/Reusable Cotton Woven Media
Precision Molded for Direct Drop In To The Factory Air Box
Increased Air Flow While Maintaining Filtering Efficiency
Pre-Oiled, Dual Cone Design
Compatible with COBB Accessport OTS Maps