Hiflofiltro Air Filter - HFA4904. Why Hiflo?. Hiflofiltro — the world’s first TÜV approved oil filter. There are applications for almost every motorcycle, scooter, and ATV that uses an oil filter. To achieve our quality aims and to ensure the consistency of our products, we use only premium materials from well known manufacturers: steel from Toyota Tsusho and NKK Japan, glue from Henkel Germany, filter paper from Ahlstrom Filtration Finland, Hollingsworth & Vose USA and Awa Paper Japan.
