K&N Replacement Air Filter (33-2374) Audi > RS4 > (B7) V8 Please make sure you check

Please make sure you check your original hose number

This is a piston design recirculation valve that is a direct replacement for the original fitment

K&N Drag Racing Base Mount Scoop Filters - Now you can protect the motor in your drag car from dust and debris on the track and in the pits with this base mount scoop filter

Models: 2004-2009

A High Flow vacuum operated twin piston valve for the Audi S3 (8P model)

K&N Replacement Air Filter (33-2374) Audi > RS4 > (B7) V8 Please make sure you checkK&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