HiFlo Premium Oil Filter The premium oil filters from Hiflo provide optimum benefits for the customer and convince with the best quality. Only high quality materials are used for the production of filters. As the only filter manufacturer that can unscrew it lets its filter from TÜV South Germany tested and certified. Filters are compared in all relevant criteria with their original filter. The test can only be passed successfully if the Hiflo filter values ​​of the original filter meets or exceeds. This ensures that all filters meet the OEM's quality requirements. The warranty of the motion remains lt. TÜV Southern Germany, obtained with the use of a replacement filter, when using a filter of equal or higher quality. HiFlo also offers the widest range of filters for motorcycles and ATVs.