■ This is a special replacement filter that is indispensable to maintain the intake performance of the brado hyperchamber. ■Please check the size that matches your current product when purchasing. ■Although we recommend replacing the filter is 5,000 - 10,000 km, the life of the filter may vary depending on the driving conditions and usage conditions. ■ As this is a dry type filter, please refrain from cleaning with water or cleaning agents as the filtration performance will decrease dramatically. The posted image may be a sample image, so there may be cases where the actual shape and accessories are different. ■Detailed Product Description → http://brado.jp/product/list_chamber.php