AEM Dryflow Conical Air Filter 5.25in Base OD / 4.75in Top OD / 7in Height 1997-bmw-528i-base-esi6489709 The commonly available replacement filter

The commonly available replacement filter cartridges filter particles as small as 7 microns

still with more grip and quicker response time than ever before

evenly spaced pleat design which allows for more usable filter surface area

Progressive Bump Seal:This pliable sealing surface conforms to even the most uneven filter housing

AEM Dryflow Conical Air Filter 5.25in Base OD / 4.75in Top OD / 7in Height 1997-bmw-528i-base-esi6489709 The commonly available replacement filterAEM Dryflow Air Filters were developed in collaboration with K&N, the inventor of High Flow Air Filters. We adopted some of the best elements of cotton air filters into a new generation synthetic Dryflow Air filter. The three dimensional filtering medium uses both depth loading and structural screen wire to enhance airflow capabilities and make the filter incredibly easy to clean. The result is a true performance air filter that does not require