K&N OE Replacement Performance Panel Air Filter (Right Side) - Audi RS4 B8 Quattro model-Leon Cupra 5F they ensure both grip and

they ensure both grip and protection

and are much more heat resistant

the enlarged induction pipe features a smoother design with less bends to hinder airflow and an increase in overall internal volume to reduce restriction and improve flow to the turbo

6") of adjustment

2) Machine the surface flat

K&N OE Replacement Performance Panel Air Filter (Right Side) - Audi RS4 B8 Quattro model-Leon Cupra 5F they ensure both grip andThe K&N OE Replacement Cotton Gauze Performance Air Filter designed to increase horsepower and acceleration while providing excellent filtration. K&N air filters are covered by the famous K&N Million Mile Limited Warranty and will be the last air filter your car will ever need. Both washable & reusable, and is designed to directly fit into the OE factory air box. note: image is for illustration purposes and may differ on delivery