Manual overboost with knob-adjustable turbo pressure, allowing you to set turbo pressure simply by turning the large knob.
Fittings, mounting bracket, and black rubber hose included.
This overboost does not work only as a vent like other types, but also differentially. This means the pressure is differential, so the passage opens only as the selected pressure increases, and does not vent regardless, wasting air. In this way, less air generated by the turbo is "wasted."
Once the knob is adjusted, it can be locked with a stop to prevent accidental movement.
Ensure that on your vehicle the turbo pressure can be increased without having removed any stops or locks on the vehicle’s original ECU for the car or motorcycle.
Old, not-updated product photo; the new version is much more refined.