Genuine BMW - CSL Replacement Air Filter - BMW E46 M3

Genuine CSL Replacement Air Filter for those with Genuine CSL and Reproduction airbox that utilize the E46 CSL Filter. Manufactured by BMC. BMC Filters are produced using a Full Molding system that enables the characteristic red filter to be realized from a single mold with no welded joints thus avoiding easy breakage. The rubber used in BMC air filtering systems has a long life, is very durable, and has optimum adhesion characteristics to all shapes of airboxes. BMC Filters are made of a multi-layered cotton gauze soaked with low viscosity oil covered with an epoxy coated alloy mesh to ensure protection from petrol fumes and oxidization due to air humidity. All BMC Filters air filters are pre-oiled, and they can be washed and regenerated by using the appropriate BMC regeneration kit. Note: For Genuine or Reproduction CSL Airbox assemblies originally equipped with E46 CSL filter. Vehicles Supported BMW E46 M3 CSL