Cobb High Flow Intake Air Filter - Subaru WRX 2022+ / Ascent 2019+ / LXT & OBXT 2020+EMISSIONS This part is not an emissions related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION COBB High Flow Filters are designed to permit very high flow rates, minimize restriction, maximize filtration and provide a long life filter. It uses a proprietary single layer polyester construction with a precision molded rubber base. WHY? The COBB High Flow Filter ensures that only clean air passes into your engine for maximum