Commonly referred to as an Air Flow Meter or HFM, this tube is a
sensor that reads the amount of air entering the engine and
indicates this amount to the ECU.
Porsche's 911 turbo is fitted with this larger Bosch sensor that
has the ability to read the high levels of air required to build
massive levels of horsepower. This HFM, with correct installation,
is recommended for used on your BMW when making very high HP in
forced induction applications.
This unit is 3.5" and increases the volume of air that the
engine can take in, increasing horsepower... 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 sensor has a greater reading range for airflow than even the
euro or 540 HFM, making it perfect for your very high HP / boosted
project.
VAC Tech Tips:
-This modification must always be accompanied by a custom chip or
ECU tune for correct results.
Both can be provided by us at VAC Motorsports. Call or email us for
details or questions.
-Compatible with 3.5" E36 Euro intakes, like our aFe.
