K&N 01-09 Audi A4/RS4/S4 Drop In Air Filter - 33-2209

K&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 factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
Technical Bulletin

• RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetim
  
  This Part Fits:

  Year	Make	Model	Submodel
  2002-2008	Audi	A4	Base
  2003-2009	Audi	A4	Cabriolet
  2002-2008	Audi	A4 Quattro	Avant
  2002-2008	Audi	A4 Quattro	Base
  2004-2009	Audi	A4 Quattro	Cabriolet
  2007-2008	Audi	RS4	Base
  2008	Audi	RS4	Cabriolet
  2004-2008	Audi	S4	Avant
  2004-2008	Audi	S4	Base
  2004-2009	Audi	S4	Cabriolet