Aeroflow Air Filters are designed with excellent filtration in mind, increasing performance! Originally designed for performance-minded racers, these reusable filters are manufactured from high-quality cotton, are pre-oiled for outstanding dust retention, and are washable. We have the newest technologies in air filter manufacturing that allow us to provide you with what we feel is the highest quality filter at a great price. Engineered for performance and durability on the street or track, you will NEVER NEED ANOTHER AIR FILTER EVER AGAIN.