Genuine BMW 540i Mass Air Flow Sensor Upgrade, BMW E36 M3

A common and inexpensive alternative to the "Euro HFM", this popular and proven upgrade for increasing air flow and netting performance comes at far less cost than other options and works just as well.

At 3.5" diameter, this AFM will directly fit onto the Euro Air Box, and fits with 'Euro' intake kits for the US M3 & 32x series cars.
Will require an 3.5-to-3" adaptor if not used with European-spec intake kit.

• Works with M50, M52, S50us, S52us
  
• 3.5" Diameter for high flow and more power
• Both good used condition and new available
• A 'must have mod' for many M3 owners looking for more power
• Compatible with Supercharged, turbo, and N/A cars

  VAC Tech's Notes:
  -Simple 2-wire swap required for OBD2 vehicles, click the box above to supply the correct wires, connector and our wire diagram.
  If your not comfortable with wiring the connector, a mechanic can offer this service with about 30 min of labor.

  -This modification should always be accompanied by a custom chip or tune for correct results.
  Either can be provided by us at VAC Motorsports. Call or email us for details or questions.