K&N Replacement Round Air Filter for 13-14 Audi RS6/RS7 4.0L V8 - E-0664 fits_1999-2005`BMW`3 Series Precision-crafted from premium synthetic elastomer

Precision-crafted from premium synthetic elastomer that outperforms factory rubber

This system is fully compatible with our Universal Fan Controller(hyperlink to MMFAN-PWM-UBK) for precise thermal management

Clears Active Aero Front Spoiler and Factory Bumper

Also included is a high quality billet aluminum crankcase fitting provided for easy installation

K&N Replacement Round Air Filter for 13-14 Audi RS6/RS7 4.0L V8 - E-0664 fits_1999-2005`BMW`3 Series Precision-crafted from premium synthetic elastomerK&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