CAR FILTERS

The panel / cylindrical air filter is commonly referred to as "replacement air filter". It is installed in the vehicle's original airbox to replace the OEM air filter. It is made of highly performing materials that allow an increased air flow combined with a more efficient filtration, guaranteeing containment of all impurities from as small as 7 microns (compared to OEM's 10 microns).


Air flow chart for a sample BMC air filter against an OEM paper filter
Temperature 25C° - Humidity 25% - Pressure 1020mbar
Test ran with oem airbox, and the related air flow constrictions.
This chart has a pure illustrative purpose and does not refer to the present filter.

BMC air filters are produced using a "Full Moulding" system that enables the characteristic red filter to be realized from a single mould 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 air filters are pre-oiled, and they can be washed and regenerated by using the appropriate BMC regeneration kit.

For any other info, please see the FAQ page.

• ALPINA

  B3 (F30/F31) 3.0 Biturbo	HP 410	year 13 >	chassis F30/F31/F32/F33
  B4 (F30/F31/F32/F33) 3.0 Biturbo	HP 410	year 13 >	chassis F30/F31/F32/F33	engine code N55B30A

• BMW

  1 (F20/F21) M135i	HP 320	year 12 >	chassis F20/F21	engine code N55B30A
  1 (F20/F21) M135i	HP 326	year 15 >	chassis F20/F21	engine code N55B30A
  2 (F22, F23, F87) M2	HP 370	year 16 >	chassis F87	engine code N55B30A
  2 (F22, F23, F87) M235	HP 326	year 14 >	chassis F22/F23	engine code N55B30A
  3 (F30/F31/F80) 335i	HP 306	year 11 >	chassis F30/F31	engine code N55B30A
  3 (F30/F31/F80) ActiveHybrid 3	HP 340	year 12 >	chassis F30	engine code N55B30A
  3 GT (F34) 335i Gran Tourismo	HP 306	year 13 >	chassis F34	engine code N55B30A
  4 (F32/F33/F36/F82) 435i	HP 306	year 13 >	chassis F32/F33/F36	engine code N55B30A