K&N Replacement Air Filter (33-2331) Audi > S6 > 4G 2011 On Some intakes are not legal

Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California

Designed for select BMW models (please confirm your exact model and year before purchasing)

Why not add gold tape to the underside of the aluminium housing to further reflect any heat soak from the engine

1 x FMBSPLTR Valve

K&N Replacement Air Filter (33-2331) Audi > S6 > 4G 2011 On Some intakes are not legalK&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 No Hassle Lifetime Limited Warranty. K&N drop in replacement filters are designed to install easily into your