aFe B58 Magnum FLOW Pro DRY S Air Filter for 20-23 BMW X3/X4 M40i (G01/02) L6 3.0L (t) (30-10422D) 1708 BSD (Blade Sports Discs) are

BSD (Blade Sports Discs) are made from a unique material known as “discalloy” for front and rear fitments

and an Axle-Back (PN 11794) designed to complement the Ground Effects kit

now with dual exhaust tones at the push of a button

and nuts/washers

aFe B58 Magnum FLOW Pro DRY S Air Filter for 20-23 BMW X3/X4 M40i (G01/02) L6 3.0L (t) (30-10422D) 1708 BSD (Blade Sports Discs) areThis 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,