K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air Filter Engine Components>Engine Hardware In contrast to the stock

In contrast to the stock cores

full-bodied sound to the mufflers

An excellent choice for any application where vertical space is limited

the engineers at KW develop the vehicle-specific KW damper tuning and spring rates with comprehensive testing on the Nurburgring Nordschleife and in the KW 7-post chassis dynamics test center

K&N 15-18 Audi A4 L4-2.0 F/I Replacement Drop In Air Filter Engine Components>Engine Hardware In contrast to the stockK&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