Hiflo is the only filter manufacturer who gives its own products to TÜV South Germany for testing and certifying. The filters are compared in all relevant criteria with the respective original filter. Tests can only be passed successfully, if Hiflo filters meet or exceed the values of the original filters. This ensures that all filters meet the quality requirements of the OEM.

According to TÜV South Germany, warrenty of the motorcycle remains when using a replacement filter with equal or higher quality requirements.

For the production of filters, only high quality materials are used: Adhesive from Germany, filter paper from Japan, Scandinavia or USA, steel from Japan.

Countless different OEM versions were combined into one filter. Only the highest quality filter was taken as a reference and got produced. With only a very few different filters, nearly all japanese and european motorcycles can be equipped.