Ramair's performance replacement elements are a direct fit upgrade, designed to replace the standard OEM filter in your vehicle, with a high performance, high flow element. No other modifications, parts or accessories are required.High Performance, MAF Safe, twin layer, fully reticulated foamFits in the OEM airbox and replaces the inefficient paper filterLifetime washable filterStainless steel cage support structureGuaranteed surface area using high-quality custom blended polymerThese Ramair Foam filters are manufactured using twin core Ramair Aeriform foam and a stainless steel cage which is used in many of their tier 1 Motorsport applications for maximum strength. Designed to give long life performance, the rubber polymer surround gives a fantastic clean and smooth finish. As a direct fit replacement for the OEM filter in your car, these filters are easy to maintain, fully reusable and washable, meaning servicing costs are reduced over time.Ramair's unique twin core foam construction