This PRORAM performance filter has been designed to replace your standard OEM air filter inside your vehicles air box. These filters are made using a high quality, high flow, synthetic nanofiber filtration media which is pleated to maximise surface area and in turn increase air flow. Utilising over 35 years of experience in the field of Motorsport filtration the PRORAM range by Ramair is the premium choice on the market today for your fast road or track car.

Key Dimensions

  • Filter Type: Flat
  • Filter Quantity: 1
  • Filter Shape: Rectangle
  • Filter Length: 267mm
  • Filter Width: 217mm
  • Filter Depth: N/A
  • Filter Internal Neck Diameter: N/A


Part Number Cross References

This part is an equivalent replacement for the following manufacturers part numbers…

  • OEM Part Numbers: BMW 13717602643 BMW 13717634154
  • Mann Part Numbers: C27026
  • K&N Part Numbers: 33-2997
  • Pipercross Part Numbers: PP1924
  • ITG Part Numbers: HMP-795
  • Other Part Numbers: BMC FB740/20


  • High flow, synthetic nanofiber filtration media
  • Fits in the OEM Airbox and replaces inefficient paper filter
  • Lifetime washable filter
  • Precision injection molded for a perfect fit
  • Guaranteed surface area using high quality custom blended polymer

PRORAM Replacement Panel Air Filter for BMW M135 M2 M235 335 435 i8 F20 F30 N55