This PRORAM performance filter has been designed to replace your standard OEM air filter inside your vehicles air box. These filters are made using a high quality, high flow, synthetic nanofiber filtration media which is pleated to maximise surface area and in turn increase air flow. Utilising over 35 years of experience in the field of Motorsport filtration the PRORAM range by Ramair is the premium choice on the market today for your fast road or track car.