K&N Replacement Round Air Filter for 13-14 Audi RS6/RS7 4.0L V8 Drivetrain>Spindles resulting in a safe increase

resulting in a safe increase in horsepower

the SB045 is cold formed to better resist torsional fatigue and retain its "memory" far longer than the hot-formed bars used by many competitors

For use w/ Ram-Air System: 2003-08 Ford 5

Since its introduction in 2010

Remark 2021+ Lexus IS350 Axle Back Exhaust w/Burnt Single Wall Tip

K&N Replacement Round Air Filter for 13-14 Audi RS6/RS7 4.0L V8 Drivetrain>Spindles resulting in a safe increaseK&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