Ramair's PRORAM performance replacement elements are a simple drop-in upgrade, designed to replace your standard OEM air filter inside your vehicle's air box, with a high performance, high flow element. No other modifications, parts or accessories are required.High flow, synthetic nanofibre filtration mediaFits in the OEM Airbox and replaces the inefficient paper filterLifetime washable filterPrecision injection moulded for a perfect fitGuaranteed surface area using high-quality custom blended polymerThese PROMRAM filters are manufactured using state-of-the-art precision injection moulding to ensure accurate dimensions and a superior fit. They are constructed from a high-flow synthetic nanofibre filtration media, which is pleated to maximise surface area and in turn increase airflow and horsepower. Offering a premium level filtration, these filters improve the protection of your engine, providing better throttle response and improved acceleration, along with the potential to improve efficiency and running costs.The durable high-quality custom-blended polymer materials are easy to maintain, fully reusable and washable, meaning servicing costs are reduced over time.Backed by over 35 years of experience in the field of motorsport filtration the PRORAM range by Ramair is a premium choice upgrade for your fast road or track car.