AFE 21 91154 Magnum Flow Pro Dry S Air Filter aFe Magnum Flow Pro Dry S Round Tapered Gray Air Filter AFE 21 90008 Magnum Flow Pro Dry S Air Filter aFe 21 91051 Magnum Flow Pro Dry S Round Tapered Gray Air Filter (5. This filter features three layers of oil free synthetic media and requires no oil during maintenance to provide maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity. This media is best suited for street use. Pro DRY S filters are easily recharged with aFe's POWER CLEANER. aFe POWER performance air filters use a rounded, evenly spaced pleat design which allows for more usable filter surface area, providing increased flow and greater dust holding capacity. This pliable sealing surface conforms to even the most uneven filter housing, making for a perfect filter fit and sealing surface every time. This design eliminates the use of gaskets or sealants and always goes back to its original form. All aFe POWER flat panel performance air filters are constructed with a full 360 degree polyurethane frame. Unlike other materials that degrade after repeated heat cycles in an engine bay, polyurethane maintains its original molded shape. This Part Fits: Year Make Model Submodel 2021 BMW 530e Base 2018 2020 BMW 530e iPerformance 2021 BMW 530e xDrive Base 2018 2020 BMW 530e xDrive iPerformance 2017 2021 BMW 530i Base 2017 2021 BMW 530i xDrive Base 2018 BMW 540d xDrive Base 2017 2021 BMW 540i Base 2017 2021 BMW 540i xDrive Base 2016 2021 BMW 740i Base 2017 2021 BMW 740i xDrive Base 2020 2021 BMW 745e xDrive Base 2020 2021 BMW 840i Base 2020 2021 BMW 840i Gran Coupe Base 2020 2021 BMW 840i xDrive Base 2020 2021 BMW 840i xDrive Gran Coupe Base 2020 2021 BMW X3 M40i 2019 2020 BMW X3 sDrive30i 2018 2020 BMW X3 xDrive30i 2020 2021 BMW X4 M40i 2019 2020 BMW X4 xDrive30i