The boost controller is a device in a car which modifies the pressure reaching the wastegate actuator. The boost controller may be manual or electronic and the effect is to increase the energy of the car.

Get a manual boost controller ...

Best way is to use a BOOST CONTROLLER

In most cases you use some type of manual boost controller between the waste-gate and a good boost source. Or you can use some type of electronic boost controller but this can be expensive.

Manual Boost Controller