This device is derived from Formula 1 and was developed in Japan.
The device supports the braking system by increasing the capacity of the brake servo.
In addition, the stored vacuum allows you to accelerate and strengthen the braking system response to pressing the pedal.
The device is mounted between the servo and the intake manifold, the mounting direction of the amplifier is neutral while the direction of the valve (arrow towards the motor).
The check valve is installed between the amplifier and the servo, leaving the factory check valve between the manifold and the amplifier (or vice versa).