Commonly referred to as "Euro HFM", "Air Flow Meter", "Air Mass
Meter".
This unit is the Original European spec E36 M3 Mass Air Flow
Sensor and is an upgrade for the US M3 Sensor. It will directly
fit onto the Euro Air Box but will require an adaptor or
european-spec intake kit to fit on the US spec cars (m50, m52,
S50us, S52us).
This unit is 3.5" and increases the volume of air that the
engine can use, increasing horsepower.
VAC Tech Tip:
This modification should always be accompanied by a custom chip or
tune for correct results.
Both can be provided by us at VAC Motorsports. Call or email us for
details or questions.
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