02501-E46M Blow-by Control T-REV

Applicable Models
BMW E46-M3

112-02501-E46M
Blow-by Control T-REV

Blow-by Control T-REV is a device that changes the pressure in the engine crankcase from positive to negative.
Negative pressure makes it easier for the pistons to move by reducing pressure pushback and air resistance.
To prevent the negative pressure from exceeding the specified value, the valve control of the alpha system is used to control the intake of air from the air filter.

The effect is
improved engine pickup.
Better response when the accelerator pedal is pressed from off.
Smoother shift change.

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